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Petition to abolish local time in Sommarøy, Norway
by Paul Eggert June 26, 2019

June 26, 2019

On Thursday, Kjell Ove Hveding, who lives in Sommarøy, Norway (latitude 70°N, population 321), formally petitioned his parliamentarian to abolish civil time in the town. Assuming this becomes law and common practice (which does not appear likely), I suppose we'd need to create a new entry for the region of Norway that switches to having no civil time whatsoever. (The tzdb convention for this is UTC with the abbreviation "-00".) The Gizmodo story about this quotes Hveding as saying: "You have to go to work, and even after work, the clock takes up your time. I have to do this, I have to do that. My experience is that [people] have forgotten how to be impulsive, to decide that the weather is good, the Sun is shining, I can just live." See: Mandelbaum RF. A Norwegian city wants to abolish time. Gizmodo. 2019-06-14 16:55 -04. https://gizmodo.com/a-norwegian-city-wants-to-get-rid-of-clocks-1835526377

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Precise meaning of AT 25:00
by Stephen Colebourne June 26, 2019

June 26, 2019

The Tokyo rule now includes the value 25:00 in the AT column. Can someone confirm the exact meaning of the 25:00? Is it a) an extended local time-of-day b) the actual duration from midnight at the start of day While similar, there would be a difference between the two definitions if there was a second DST gap/overlap earlier in the day. eg. imagine the case where DST starts at 13:00 (with a gap to 14:00) and ends at 26:00. With (a) the AT column would hold 26:00, while with (b) the AT column would hold 25:00 I'm pretty sure it is (a), but wanted to double check before it gets baked into APIs Stephen

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*Off top* A little respect ...
by Chris Woodbury June 26, 2019

June 26, 2019

On Tue Jun 25 13:34:37 UTC 2019, Sergij Marchenko makars at gmail.com wrote: > > What is the time zone here? This is not interesting to anyone. Actually, I disagree, that is *EXACTLY* what this list is about. It is a *technical list about timezones* and the IANA TZ software. Generally, I/we would rather politics did not rear its ugly head. However, there is a constant trickle of folks *WHO MISS THIS POINT ENTIRELY*. > The question is, to which country belongs the territory occupied by Putin Huilo. To you; perhaps. To this list, probably not. *County codes* kept by the TZ database are a secondary aspect of the zone. (Again: *NOT A LEGAL DOCUMENT*.) TZ keeps the country code only as a non-authoritative aspect of the data. Specifically, "the CC normally identifies the administrative hierarchy that currently effectively determines the the civil time". Again, we're talking about "reality on the ground". (Though Dr. Eggert did mention AQ (Antarctica) and Crimea being exceptions.) "zone.tab", one of the files listing CCs, explicitly states: 19: This table is intended as an aid for users to help them select timezones 20: appropriate for their practical needs. It is not intended to take or 21: endorse any position on legal or territorial claims. "zone1970.tab", the other file, says exactly the same thing starting on line 30. Both files explicitly refer to this disclaimer for the Europe/Simferopol entry. Last but not least, currently the CCs of Europe/Simferopol in ".zone.tab" and "zone1970.tab" are "UA" and "RU,UA" respectively. These seem apropos to me.

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Daylight saving and heart attacks
by Arthur David Olson June 26, 2019

June 26, 2019

Belatedly...brought to my attention by reading Matt Parker's "Humble Pi," the youtube video "Does daylight saving kill people?" from September, 2018. https://www.youtube.com/watch?v=XZGs5Im9f8Q @dashdashado

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*Off topic* A little respect ...
by Chris Woodbury June 25, 2019

June 25, 2019

> On Sun Jun 23 08:57:16 UTC 2019 Sergij Marchenko makars at gmail.com wrote: > > You write very beautifully, but the fact remains that once the Russians > occupy the Crimea, you immediately made changes, pleasing Putin ... Yes, I suppose that might have pleased Putin (if he ever became aware of it if only by the fact that his cellular telephone showed the correct local time) but ... it wasn't done to please or displease him or his cronies (and the fifth columnists 'phones are right, too.) It was, as has been explained, to reflect the technical "reality on the ground". I'm sorry if that displeased you but it is what it is. Being obstreperous isn't going to change anything (except by further expanding the misery). Making us out to be tools of injustice doesn't make it so. Note that the *country codes* that came into question have been patched reasonably expeditiously by Dr. Eggert. TZ will reflect reality as best it can under the circumstances with or without anyone's complete satisfaction. I *am* certain that no one is happy about all the death, destruction and heart wrenching circumstances from what has come to pass. My thoughts and prayers are with all the people who find themselves in such unfortunate conditions. Were it only within my power to change them....

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Jeopardy! category on time zones 2019-05-28
by Tim Parenti June 25, 2019

June 25, 2019

Apparently there is a category on time zones on the US version of *Jeopardy!* tonight (Tuesday 28 May). I'll avoid any spoilers for now — due to the vagaries of US broadcast syndication and, well, time zones — for anyone stateside who might be as captivated by the performance of the current champion, James Holzhauer, as my friends. I'll try to send over the clues tomorrow. -- Tim Parenti

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Timezone in Autonomous Republic of Crimea and spelling of Kyiv
by Oleksandr Ryzhenko June 23, 2019

June 23, 2019

*Dear Mr. Paul Eggert,* By this letter let me as the representative of Ukraine to ICANN's GAC inform you about the following. The State Agency for e-Governance of Ukraine is the national authority of Ukraine that is responsible for matters related to Internet governance, including those within the purview of ICANN. We have discovered mistakes in the Time Zone Database. In particular, the time zones, country code and coordinates for the part of Ukrainian territory, namely the Autonomous Republic of Crimea, the city of Simferopol, and Sevastopol, are determined incorrectly. As far as we are aware, the Zone Europe/Simferopol was changed to MSK on the grounds of Russian Federation citizen appeal (Mr. Alexander Krivenyshev). The appeal was filed after *Russian military intervention in Autonomous Republic of Crimea followed by the illegal annexation of the sovereign territory of Ukraine.* We would request your immediate attention that change of this specified time zone is *a gross violation of the rules of international law*, namely: - United Nations General Assembly Resolution 68/262, adopted on March 27, 2014 by the sixty-eighth session of the United Nations General Assembly in response to the Russian annexation of Crimea, entitled "Territorial integrity of Ukraine"; - United Nations General Assembly Resolutions 71/205, 72/190, 73/263: Situation of human rights in the Autonomous Republic of Crimea and the city of Sevastopol (Ukraine); - United Nations General Assembly Resolution 73/194: Problem of the militarization of the Autonomous Republic of Crimea and the city of Sevastopol, Ukraine, as well as parts of the Black Sea and the Sea of Azov. Taking into account the above, we urge you to resolve this situation by determining *EU EE%sT time for Zone Europe/Simferopol* in Time Zone Database and identify* UA* as a country code for *Europe/Simferopol.* At the same time, we draw your attention to the decision of The United States Board on Geographic Names. *English spelling of Ukraine’s capital has changed from Kiev to Kyiv* (source: https://www.kyivpost.com/world/kyiv-not-kiev-us-changes-spelling-of-ukraini…) In this regard, we ask you to update the spelling of Kyiv in all existing databases of your organization. ---------------------------------------------- *Sincerely,Oleksandr RyzhenkoHead of the State Agency for e-Governance of UkraineRepresentative of Ukraine to ICANN’s GAC *

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*Off topic* A little respect ...
by Chris Woodbury June 23, 2019

June 23, 2019

To Oleksandr Ryzhenko, et al, and whom so ever might be listening: Firstly, that's Dr. Paul R. Eggert, PhD 1980 UCLA. He has been voluntarily contributing his time to this (and other) projects (and education) for over thirty years. I, for one, respect and value his contributions (even when I momentarily forget to do so). Secondly, telling us (and him) that such and such is a violation of "*international law*" (as tho they were an authority and someone was going to be dragged off to the The Hague) is a threat and an inappropriate response to the supposed provocation. Making such is a clear indication that there is a certain lack of understanding of what's really going on. (As an aside and for what it's worth: I commiserate with those worrying about the whole Kiev/Kyiv thing. It's a huge "can of worms" and technical but it ain't going to happen! If it were "fixed" this one time, a precedent would be set and similar "problems" would have to be "fixed". It would be never ending. Theresult being *technically unnecessary* database "churn". The stance that some-thing like this are internal labels is an interesting solution to a "problem". Also, thinking of them as a thing imposed over the barrel of a gun and wanting to "fix it" *right now*, where others might not, is just going to raise ones blood pressure. It will be changed sometime. The language or transliteration will change over time, or there will be new generation of tzdb volunteer maintainers (hint, hint) or, possibly, our own version of Vasili Arkhipov* will come along and find a solution. Remember, sometimes a "problem" is merely a matter of perspective. (I was also raised to appreciate an excellent quibble when I see one.)) (Also, I might be wrong, but one might consider that treating the TZ database as if it were a legal document could be a mistake.) Lastly, I personally would appreciate it if the folks "who have a bone to pick" would spend the same amount of time they spend so carefully crafting their e-mails*going over the content of the archives* before they actually send them. It also might be helpful to *consult a subject matter expert* while composing, too. It might just save some time for all of us. * An underappreciated man who saved the world. -

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[PATCH] Fix ‘make check’ problems caused by recent changes
by Paul Eggert June 22, 2019

June 22, 2019

* Makefile: Fix stray non-ASCII chars in comments. (check_sorted): Omit tests that duplicate what checktab.awk does. Discovered when debugging checktab.awk. * checktab.awk: Don’t complain about special case for Crimea. --- Makefile | 10 ++-------- checktab.awk | 9 ++++++++- 2 files changed, 10 insertions(+), 9 deletions(-) diff --git a/Makefile b/Makefile index d305f68..6816d3b 100644 --- a/Makefile +++ b/Makefile @@ -36,7 +36,7 @@ DATAFORM= main LOCALTIME= GMT # The POSIXRULES macro controls interpretation of nonstandard and obsolete -# POSIX-like TZ settings like TZ=’EET-2EEST’ that lack DST transition rules. +# POSIX-like TZ settings like TZ='EET-2EEST' that lack DST transition rules. # In the reference implementation, if you want something other than Eastern # United States time as a template for handling these settings, you can # change the line below (after finding the timezone you want in the @@ -58,7 +58,7 @@ LOCALTIME= GMT # Nonempty POSIXRULES is obsolete and should not be relied on, because: # * It does not work correctly in popular implementations such as GNU/Linux. # * It does not work in the tzdb implementation for timestamps after 2037. -# * It is incompatible with ’zic -b slim’ if POSIXRULES specifies transitions +# * It is incompatible with 'zic -b slim' if POSIXRULES specifies transitions # at standard time or UT rather than at local time. # In short, software should avoid ruleless settings like TZ='EET-2EEST' # and so should not depend on the value of POSIXRULES. @@ -805,12 +805,6 @@ CHECK_CC_LIST = { n = split($$1,a,/,/); for (i=2; i<=n; i++) print a[1], a[i]; } check_sorted: backward backzone iso3166.tab zone.tab zone1970.tab $(AWK) '/^Link/ {print $$3}' backward | LC_ALL=C sort -cu $(AWK) '/^Zone/ {print $$2}' backzone | LC_ALL=C sort -cu - $(AWK) '/^[^#]/ {print $$1}' iso3166.tab | LC_ALL=C sort -cu - $(AWK) '/^[^#]/ {print $$1}' zone.tab | LC_ALL=C sort -c - $(AWK) '/^[^#]/ {print substr($$0, 1, 2)}' zone1970.tab | \ - LC_ALL=C sort -c - $(AWK) '/^[^#]/ $(CHECK_CC_LIST)' zone1970.tab | \ - LC_ALL=C sort -cu touch $@ check_links: checklinks.awk $(TDATA_TO_CHECK) tzdata.zi diff --git a/checktab.awk b/checktab.awk index 393ab19..ec145b5 100644 --- a/checktab.awk +++ b/checktab.awk @@ -63,12 +63,19 @@ BEGIN { coordinates = $2 tz = $3 comments = $4 - if (cc < cc0) { + + # Don't complain about a special case for Crimea in zone.tab. + # FIXME: zone.tab should be removed, since it is obsolete. + # Or at least put just "XX" in its country-code column. + if (cc < cc0 \ + && !(zone_table == "zone.tab" \ + && tz0 == "Europe/Simferopol")) { printf "%s:%d: country code '%s' is out of order\n", \ zone_table, zone_NR, cc >>"/dev/stderr" status = 1 } cc0 = cc + tz0 = tz tztab[tz] = 1 tz2comments[tz] = comments tz2NR[tz] = zone_NR -- 2.21.0

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Re: [tz] Crimean timezones
by Sergij Marchenko June 21, 2019

June 21, 2019

Dear Paul, By making such a proposal to Mr. Demediuk you are in fact taking sides despite your alleged neutrality. Russia's claims to Crimea are not supported by anyone but Russia itself, perhaps barring a negligible amount of countries that have their own governments largely criticized as undemocratic. The vast majority of countries have openly condemned the annexation and Russian aggression and continue to recognize Crimea as a Ukrainian territory it is. A solution, which is more consistent with your view, exists. The patch could instead make the interface display the timezones in question as Russian to Russian users alone, while in the rest of the world they would be listed as Ukrainian. This practice, although controversial in the face of the international law, is a lesser violation of it than the current state of matter. By keeping things the way they are now you are sending the world a message. The message is that you are endorsing the aggressor, even though it may not appear to you as such. With a leaden heart we would accept the territory being assigned to different countries depending on a user's geolocation, provided that RU only shows up for Russian users and UA is the default configuration elsewhere, globally. Otherwise we would kindly ask you to drop the neutrality claims and make your open endorsement of Russian military aggression against Ukraine transparent. Kind regards. -- Best regards, Sergij Marchenko mailto:makars@gmail.com http://makar.homelinux.net Skype: makarsoft Viber/WhatsApp/Telegram/Signal: +380661877234

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Re: [tz] Crimean timezones
by Sergij Marchenko June 21, 2019

June 21, 2019

I'm using Fedora release 30 (Thirty) 5.1.11-300.fc30.x86_64 Here is a screenshot in the Gnome-3 environment: http://makar.homelinux.net/ftp/pub/exchange/20190621/Screenshot_20190620_14… When selecting the city Simferopol highlights the Russian Federation (and in fact, correctly - Ukraine) Here is a screenshot in KDE: http://makar.homelinux.net/ftp/pub/exchange/20190621/Screenshot_20190620_21… When choosing a city, Simferopol highlights Europe / Russia (and in fact, rightly, Europe / Ukraine) -- Best regards, Sergij Marchenko mailto:makars@gmail.com http://makar.homelinux.net Skype: makarsoft Viber/WhatsApp/Telegram/Signal: +380661877234

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Timezone in Autonomous Republic of Crimea and spelling of Kyiv
by Oleksandr Ryzhenko June 21, 2019

June 21, 2019

*Dear Mr. Paul Eggert,* By this letter let me as the representative of Ukraine to ICANN's GAC inform you about the following. The State Agency for e-Governance of Ukraine is the national authority of Ukraine that is responsible for matters related to Internet governance, including those within the purview of ICANN. We have discovered mistakes in the Time Zone Database. In particular, the time zones, country code and coordinates for the part of Ukrainian territory, namely the Autonomous Republic of Crimea, the city of Simferopol, and Sevastopol, are determined incorrectly. As far as we are aware, the Zone Europe/Simferopol was changed to MSK on the grounds of Russian Federation citizen appeal (Mr. Alexander Krivenyshev). The appeal was filed after Russian military intervention in Autonomous Republic of Crimea followed by the illegal annexation of the sovereign territory of Ukraine. We would request your immediate attention that change of this specified time zone is a gross *violation of the rules of international law*, namely: - United Nations General Assembly Resolution 68/262, adopted on March 27, 2014 by the sixty-eighth session of the United Nations General Assembly in response to the Russian annexation of Crimea, entitled "Territorial integrity of Ukraine"; - United Nations General Assembly Resolutions 71/205, 72/190, 73/263: Situation of human rights in the Autonomous Republic of Crimea and the city of Sevastopol (Ukraine); - United Nations General Assembly Resolution 73/194: Problem of the militarization of the Autonomous Republic of Crimea and the city of Sevastopol, Ukraine, as well as parts of the Black Sea and the Sea of Azov. Taking into account the above, we urge you to resolve this situation by determining *EU EE%sT *time for *Zone Europe/Simferopol *in Time Zone Database and identify *UA* as a country code for* Europe/Simferopol.* At the same time, we draw your attention to the decision of The United States Board on Geographic Names. *English spelling of Ukraine’s capital has changed* from Kiev to *Kyiv* (source: https://www.kyivpost.com/world/kyiv-not-kiev-us-changes-spelling-of-ukraini…) In this regard, we ask you to update the spelling of Kyiv in all existing databases of your organization. ---------------------------------------------- *Sincerely,Oleksandr RyzhenkoHead of the State Agency for e-Governance of UkraineRepresentative of Ukraine to ICANN’s GAC*

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Crimean timezones
by Sergij Marchenko June 20, 2019

June 20, 2019

Dear Mr. Eggert, I am reaching out to you as to the IESG-designated TZ Coordinator, as you are listed here: https://www.iana.org/time-zones Let me preface my letter with assuring you that I am reaching out in good will. I live in Ukraine. As a longtime Linux user, I was disappointed to notice that in my timezone settings that one of Simferopol is being assigned to the Russian Federation. Apparently, my preferred desktop environment, along with several others, pulls this data from the project you maintain. The statement that Simferopol (or Sevastopol, or any other Crimean city, for that matter) is situated in Russia contradicts the official stance of the United States, Canada, the counties of the European Union, and many others. Suffice it to say, the international community never recognized Russia's claims to Crimea as valid and the so-called "referendum" as legally binding. The Unites States of America was also a signatory of the Budapest Memorandum on Security Assurances, which guarantees the territorial intergity of Ukraine. Let me add that the annexation of the Crimean peninsula in 2014 was only the first step of the Russian aggression against my country. The war in Donbas led by Russia is still ongoing and has costed dozens of thousands of Ukrainians their lives. As of 2016, the International Criminal Court officially recognized the war in Donbas as Russia's invasion of Ukraine. Russia and its allies has also put a lot of effort in spreading misinformation about the conflict, attempting to portray Ukraine as a far-right state and the Euromaidan protests as a coup. As an eyewitness to these events, I can assure you that it can not be further from truth, and, should you be interested, I can provide multiple sources that debunk this propaganda. Therefore, I humbly ask you to research this delicate matter. Once you have confirmed that pro-Russian sources are completely misinterpreting their far-from-innocuous role in the tragedy that shattered numerous families in my country, I hope that you will consider submitting corrections to your project and list all Crimean cities and respective timezones as Ukrainian. This would assure its compliance to the international standards, from both legal and moral viewpoint. I remain open to dialogue and would gladly answer any further questions you may happen to have. Looking forward to hearing from you, -- Best regards, Sergij Marchenko mailto:makars@gmail.com http://makar.homelinux.net Skype: makarsoft Viber/WhatsApp/Telegram/Signal: +380661877234

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[PROPOSED 1/5] * tzfile.5: Typeset ‘-’ more carefully.
by Paul Eggert June 18, 2019

June 18, 2019

--- tzfile.5 | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/tzfile.5 b/tzfile.5 index d13029c..69f8860 100644 --- a/tzfile.5 +++ b/tzfile.5 @@ -119,13 +119,13 @@ that follow the structure(s) in the file. The .I tt_utoff -value is never equal to -2**31, to let 32-bit clients negate it without +value is never equal to \-2**31, to let 32-bit clients negate it without overflow. Also, in realistic applications .I tt_utoff -is in the range [-89999, 93599] (i.e., more than -25 hours and less +is in the range [\-89999, 93599] (i.e., more than \-25 hours and less than 26 hours); this allows easy support by implementations that -already support the POSIX-required range [-24:59:59, 25:59:59]. +already support the POSIX-required range [\-24:59:59, 25:59:59]. .IP * .I tzh_leapcnt pairs of four-byte values, written in network byte order; @@ -204,7 +204,7 @@ For version-3-format timezone files, the POSIX-TZ-style string may use two minor extensions to the POSIX TZ format, as described in .BR newtzset (3). First, the hours part of its transition times may be signed and range from -\*-167 through 167 instead of the POSIX-required unsigned values +\-167 through 167 instead of the POSIX-required unsigned values from 0 through 24. Second, DST is in effect all year if it starts January 1 at 00:00 and ends December 31 at 24:00 plus the difference @@ -239,7 +239,7 @@ in the version 1 data block to save space. Time zone designations should consist of at least three (3) and no more than six (6) ASCII characters from the set of alphanumerics, -.q "-", +.q "\*-", and .q "+". This is for compatibility with POSIX requirements for @@ -298,11 +298,11 @@ mishandled by version 2 readers. Some readers designed for version 2 do not support permanent daylight saving time, e.g., a TZ string .q "EST5EDT,0/0,J365/25" -denoting permanent Eastern Daylight Time (\*-04). +denoting permanent Eastern Daylight Time (\-04). As a partial workaround, a writer can substitute standard time for the next time zone east, e.g., .q "AST4" -for permanent Atlantic Standard Time (\*-04). +for permanent Atlantic Standard Time (\-04). .IP * Some readers ignore the footer, and instead predict future timestamps from the time type of the last transition. @@ -316,17 +316,17 @@ As a partial workaround, a writer can output a dummy (no-op) first transition at an early time. .IP * Some readers mishandle timestamps before the first -transition that has a timestamp not less than -2**31. +transition that has a timestamp not less than \-2**31. Readers that support only 32-bit timestamps are likely to be more prone to this problem, for example, when they process 64-bit transitions only some of which are representable in 32 bits. As a partial workaround, a writer can output a dummy -transition at timestamp \*-2**31. +transition at timestamp \-2**31. .IP * Some readers mishandle a transition if its timestamp has the minimum possible signed 64-bit value. -Timestamps less than \*-2**59 are not recommended. +Timestamps less than \-2**59 are not recommended. .IP * Some readers mishandle POSIX-style TZ strings that contain @@ -347,7 +347,7 @@ These characters are not recommended. Some readers may mishandle time zone abbreviations that contain fewer than 3 or more than 6 characters, or that contain ASCII characters other than alphanumerics, -.q "-", +.q "\*-", and .q "+". These abbreviations are not recommended. @@ -381,18 +381,18 @@ Readers that do not support negative timestamps are likely to be more prone to this problem. .IP * Some readers mishandle time zone abbreviations like -.q "-08" +.q "\*-08" that contain .q "+", -.q "-", +.q "\*-", or digits. .IP * Some readers mishandle UT offsets that are out of the -traditional range of \*-12 through +12 hours, and so do not +traditional range of \-12 through +12 hours, and so do not support locations like Kiritimati that are outside this range. .IP * -Some readers mishandle UT offsets in the range [\*-3599, \*-1] +Some readers mishandle UT offsets in the range [\-3599, \-1] seconds from UT, because they integer-divide the offset by 3600 to get 0 and then display the hour part as .q "+00". -- 2.21.0

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[PROPOSED] Rename internal identifiers to match RFC 8536
by Paul Eggert June 18, 2019

June 18, 2019

Internet RFC 8536 uses names that differ a bit from the names historically used in tzdb. The RFC uses "utoff" instead of "gmtoff" for UT (GMT) offsets, and "desigidx" instead of "abbrind" for designator (abbreviation) indexes. Going forward it’s better to stick with the RFC terminology in internal identifiers. This change does not affect longstanding and standard APIs such as the tm_gmtoff member of struct tm or the string "gmtoff" in zdump output. * africa, antarctica, asia, australasia, backzone, europe, factory: * northamerica, pacificnew, southamerica, systemv, tz-how-to.html: * tzfile.5, zoneinfo2tdf.pl: Use UTOFF instead of GMTOFF in comments. * localtime.c (struct ttinfo): Rename tt_gmtoff to tt_utoff, tt_abbrind to tt_desigidx, tt_isgmt to tt_ttisut. * localtime.c (init_ttinfo, tzloadbody): Rename locals for consistency. * tzfile.h (struct tzhead): Rename tzh_ttisgmtcnt to tzh_ttisutcnt. * zic.c (struct rule): Rename r_todisgmt to r_todisut. (struct zone): Rename z_gmtoff to z_utoff. (ZF_UTOFF): Renamed from ZF_GMTOFF. (ZFC_UTOFF): Renamed from ZFC_GMTOFF. (utoffs): Renamed from gmtoffs. (desigidx): Renamed from abbrinds. (ttisuts): Renamed from ttisgmts. (inzsub, stringrule, outzone, addtype): Rename locals for consistency. --- africa | 42 ++++++------ antarctica | 14 ++-- asia | 90 ++++++++++++------------ australasia | 60 ++++++++-------- backzone | 2 +- europe | 80 +++++++++++----------- factory | 2 +- localtime.c | 91 +++++++++++++------------ northamerica | 100 +++++++++++++-------------- pacificnew | 2 +- southamerica | 34 +++++----- systemv | 2 +- tz-how-to.html | 12 ++-- tzfile.5 | 16 ++--- tzfile.h | 4 +- zic.c | 177 +++++++++++++++++++++++------------------------- zoneinfo2tdf.pl | 2 +- 17 files changed, 363 insertions(+), 367 deletions(-) diff --git a/africa b/africa index 07ef15d..068677d 100644 --- a/africa +++ b/africa @@ -89,7 +89,7 @@ Rule Algeria 1980 only - Apr 25 0:00 1:00 S Rule Algeria 1980 only - Oct 31 2:00 0 - # Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's # more precise 0:09:21. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Algiers 0:12:12 - LMT 1891 Mar 15 0:01 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 0:00 Algeria WE%sT 1940 Feb 25 2:00 @@ -124,7 +124,7 @@ Zone Africa/Algiers 0:12:12 - LMT 1891 Mar 15 0:01 # For now, ignore that and follow the 1911-05-26 Portuguese decree # (see Europe/Lisbon). # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Atlantic/Cape_Verde -1:34:04 - LMT 1912 Jan 01 2:00u # Praia -2:00 - -02 1942 Sep -2:00 1:00 -01 1945 Oct 15 @@ -135,7 +135,7 @@ Zone Atlantic/Cape_Verde -1:34:04 - LMT 1912 Jan 01 2:00u # Praia # See Africa/Lagos. # Chad -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Ndjamena 1:00:12 - LMT 1912 # N'Djamena 1:00 - WAT 1979 Oct 14 1:00 1:00 WAST 1980 Mar 8 @@ -151,7 +151,7 @@ Zone Africa/Ndjamena 1:00:12 - LMT 1912 # N'Djamena # See Africa/Lagos. # Côte d'Ivoire / Ivory Coast -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Abidjan -0:16:08 - LMT 1912 0:00 - GMT Link Africa/Abidjan Africa/Bamako # Mali @@ -356,7 +356,7 @@ Rule Egypt 2014 only - Jun 26 24:00 0 - Rule Egypt 2014 only - Jul 31 24:00 1:00 S Rule Egypt 2014 only - Sep lastThu 24:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Cairo 2:05:09 - LMT 1900 Oct 2:00 Egypt EE%sT @@ -414,7 +414,7 @@ Zone Africa/Cairo 2:05:09 - LMT 1900 Oct # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Ghana 1920 1942 - Sep 1 0:00 0:20 - Rule Ghana 1920 1942 - Dec 31 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Accra -0:00:52 - LMT 1918 0:00 Ghana GMT/+0020 @@ -428,13 +428,13 @@ Zone Africa/Accra -0:00:52 - LMT 1918 # evidently confusing the date of the Portuguese decree # (see Europe/Lisbon) with the date that it took effect. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Bissau -1:02:20 - LMT 1912 Jan 1 1:00u -1:00 - -01 1975 0:00 - GMT # Kenya -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Nairobi 2:27:16 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - +0230 1940 @@ -469,7 +469,7 @@ Link Africa/Nairobi Indian/Mayotte # Use the abbreviation "MMT" before 1972, as the more-accurate numeric # abbreviation "-004430" would be one byte over the POSIX limit. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Monrovia -0:43:08 - LMT 1882 -0:43:08 - MMT 1919 Mar # Monrovia Mean Time -0:44:30 - MMT 1972 Jan 7 # approximately MMT @@ -519,7 +519,7 @@ Rule Libya 1997 only - Apr 4 0:00 1:00 S Rule Libya 1997 only - Oct 4 0:00 0 - Rule Libya 2013 only - Mar lastFri 1:00 1:00 S Rule Libya 2013 only - Oct lastFri 2:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Tripoli 0:52:44 - LMT 1920 1:00 Libya CE%sT 1959 2:00 - EET 1982 @@ -629,7 +629,7 @@ Rule Mauritius 1982 only - Oct 10 0:00 1:00 - Rule Mauritius 1983 only - Mar 21 0:00 0 - Rule Mauritius 2008 only - Oct lastSun 2:00 1:00 - Rule Mauritius 2009 only - Mar lastSun 2:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis 4:00 Mauritius +04/+05 # Agalega Is, Rodriguez @@ -1083,7 +1083,7 @@ Rule Morocco 2087 only - May 4 2:00 0 - # need to be extended, though quite possibly Morocco will change the # rules first. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26 0:00 Morocco +00/+01 1984 Mar 16 1:00 - +01 1986 @@ -1113,7 +1113,7 @@ Zone Africa/El_Aaiun -0:52:48 - LMT 1934 Jan # El Aaiún # https://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf # merely made it official? # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Maputo 2:10:20 - LMT 1903 Mar 2:00 - CAT Link Africa/Maputo Africa/Blantyre # Malawi @@ -1185,7 +1185,7 @@ Rule Namibia 1995 2017 - Apr Sun>=1 2:00 -1:00 WAT #Rule Namibia 1995 2017 - Apr Sun>=1 2:00 0 WAT # End of rearguard section. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8 1:30 - +0130 1903 Mar 2:00 - SAST 1942 Sep 20 2:00 @@ -1206,7 +1206,7 @@ Zone Africa/Windhoek 1:08:24 - LMT 1892 Feb 8 # See Africa/Lagos. # Nigeria -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Lagos 0:13:36 - LMT 1919 Sep 1:00 - WAT Link Africa/Lagos Africa/Bangui # Central African Republic @@ -1220,7 +1220,7 @@ Link Africa/Lagos Africa/Niamey # Niger Link Africa/Lagos Africa/Porto-Novo # Benin # Réunion -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Reunion 3:41:52 - LMT 1911 Jun # Saint-Denis 4:00 - +04 # @@ -1280,7 +1280,7 @@ Zone Africa/Sao_Tome 0:26:56 - LMT 1884 # See Africa/Abidjan. # Seychelles -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Mahe 3:41:48 - LMT 1906 Jun # Victoria 4:00 - +04 # From Paul Eggert (2001-05-30): @@ -1300,7 +1300,7 @@ Zone Indian/Mahe 3:41:48 - LMT 1906 Jun # Victoria # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule SA 1942 1943 - Sep Sun>=15 2:00 1:00 - Rule SA 1943 1944 - Mar Sun>=15 2:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Johannesburg 1:52:00 - LMT 1892 Feb 8 1:30 - SAST 1903 Mar 2:00 SA SAST @@ -1335,14 +1335,14 @@ Rule Sudan 1970 only - May 1 0:00 1:00 S Rule Sudan 1970 1985 - Oct 15 0:00 0 - Rule Sudan 1971 only - Apr 30 0:00 1:00 S Rule Sudan 1972 1985 - Apr lastSun 0:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Khartoum 2:10:08 - LMT 1931 2:00 Sudan CA%sT 2000 Jan 15 12:00 3:00 - EAT 2017 Nov 1 2:00 - CAT # South Sudan -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Juba 2:06:28 - LMT 1931 2:00 Sudan CA%sT 2000 Jan 15 12:00 3:00 - EAT @@ -1448,7 +1448,7 @@ Rule Tunisia 2006 2008 - Oct lastSun 2:00s 0 - # Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's # more precise 0:09:21. # Shanks & Pottenger say the 1911 switch was on Mar 9; go with Howse's Mar 11. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Africa/Tunis 0:40:44 - LMT 1881 May 12 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 1:00 Tunisia CE%sT diff --git a/antarctica b/antarctica index 1dd9b00..edb74f3 100644 --- a/antarctica +++ b/antarctica @@ -13,7 +13,7 @@ # for information. # Unless otherwise specified, we have no time zone information. -# FORMAT is '-00' and GMTOFF is 0 for locations while uninhabited. +# FORMAT is '-00' and UTOFF is 0 for locations while uninhabited. # Argentina - year-round bases # Belgrano II, Confin Coast, -770227-0343737, since 1972-02-05 @@ -70,7 +70,7 @@ # Australian Antarctica Division informed us that Casey changed time # zone to UTC+11 in "the morning of 22nd October 2016". -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Antarctica/Casey 0 - -00 1969 8:00 - +08 2009 Oct 18 2:00 11:00 - +11 2010 Mar 5 2:00 @@ -142,7 +142,7 @@ Zone Antarctica/Mawson 0 - -00 1954 Feb 13 # St Paul Island - near Amsterdam, uninhabited # fishing stations operated variously 1819/1931 # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Kerguelen 0 - -00 1950 # Port-aux-Français 5:00 - +05 # @@ -153,7 +153,7 @@ Zone Indian/Kerguelen 0 - -00 1950 # Port-aux-Français # Another base at Port-Martin, 50km east, began operation in 1947. # It was destroyed by fire on 1952-01-14. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Antarctica/DumontDUrville 0 - -00 1947 10:00 - +10 1952 Jan 14 0 - -00 1956 Nov @@ -181,7 +181,7 @@ Zone Antarctica/DumontDUrville 0 - -00 1947 # Syowa station, which is the first antarctic station of Japan, # was established on 1957-01-29. Since Syowa station is still the main # station of Japan, it's appropriate for the principal location. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Antarctica/Syowa 0 - -00 1957 Jan 29 3:00 - +03 # See: @@ -231,7 +231,7 @@ Rule Troll 2005 max - Mar lastSun 1:00u 2:00 +02 #Rule Troll 2004 max - Nov 7 1:00u 0:00 +00 # Remove the following line when uncommenting the above '#Rule' lines. Rule Troll 2004 max - Oct lastSun 1:00u 0:00 +00 -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Antarctica/Troll 0 - -00 2005 Feb 12 0:00 Troll %s @@ -305,7 +305,7 @@ Zone Antarctica/Vostok 0 - -00 1957 Dec 16 # From Paul Eggert (2002-10-22) # <http://webexhibits.org/daylightsaving/g.html> says Rothera is -03 all year. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Antarctica/Rothera 0 - -00 1976 Dec 1 -3:00 - -03 diff --git a/asia b/asia index e64f0c4..dee9405 100644 --- a/asia +++ b/asia @@ -84,7 +84,7 @@ Rule RussiaAsia 1985 2010 - Mar lastSun 2:00s 1:00 - Rule RussiaAsia 1996 2010 - Oct lastSun 2:00s 0 - # Afghanistan -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Kabul 4:36:48 - LMT 1890 4:00 - +04 1945 4:30 - +0430 @@ -117,7 +117,7 @@ Zone Asia/Kabul 4:36:48 - LMT 1890 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Armenia 2011 only - Mar lastSun 2:00s 1:00 - Rule Armenia 2011 only - Oct lastSun 2:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 3:00 - +03 1957 Mar 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s @@ -143,7 +143,7 @@ Zone Asia/Yerevan 2:58:00 - LMT 1924 May 2 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Azer 1997 2015 - Mar lastSun 4:00 1:00 - Rule Azer 1997 2015 - Oct lastSun 5:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Baku 3:19:24 - LMT 1924 May 2 3:00 - +03 1957 Mar 4:00 RussiaAsia +04/+05 1991 Mar 31 2:00s @@ -231,7 +231,7 @@ Zone Asia/Baku 3:19:24 - LMT 1924 May 2 Rule Dhaka 2009 only - Jun 19 23:00 1:00 - Rule Dhaka 2009 only - Dec 31 24:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Dhaka 6:01:40 - LMT 1890 5:53:20 - HMT 1941 Oct # Howrah Mean Time? 6:30 - +0630 1942 May 15 @@ -241,7 +241,7 @@ Zone Asia/Dhaka 6:01:40 - LMT 1890 6:00 Dhaka +06/+07 # Bhutan -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu 5:30 - +0530 1987 Oct 6:00 - +06 @@ -252,13 +252,13 @@ Zone Asia/Thimphu 5:58:36 - LMT 1947 Aug 15 # or Thimbu # We have no information as to when standard time was introduced; # assume it occurred in 1907, the same year as Mauritius (which # then contained the Chagos Archipelago). -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Chagos 4:49:40 - LMT 1907 5:00 - +05 1996 6:00 - +06 # Brunei -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan 7:30 - +0730 1933 8:00 - +08 @@ -273,7 +273,7 @@ Zone Asia/Brunei 7:39:40 - LMT 1926 Mar # Bandar Seri Begawan # of Greenwich." This refers to the period before Burma's transition to +0630, # a transition for which Shanks is the only source. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Yangon 6:24:47 - LMT 1880 # or Rangoon 6:24:47 - RMT 1920 # Rangoon local time 6:30 - +0630 1942 May @@ -561,7 +561,7 @@ Rule PRC 1987 1991 - Apr Sun>=11 2:00 1:00 D # that the sort of users who prefer Asia/Urumqi now typically ignored the # +08 mandate back then. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # Beijing time, used throughout China; represented by Shanghai. Zone Asia/Shanghai 8:05:43 - LMT 1901 8:00 Shang C%sT 1949 May 28 @@ -750,7 +750,7 @@ Rule HK 1965 1976 - Oct Sun>=16 3:30 0 - Rule HK 1973 only - Dec 30 3:30 1:00 S Rule HK 1979 only - May 13 3:30 1:00 S Rule HK 1979 only - Oct 21 3:30 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 0:36:42 8:00 - HKT 1941 Jun 15 3:00 8:00 1:00 HKST 1941 Oct 1 4:00 @@ -879,7 +879,7 @@ Rule Taiwan 1974 1975 - Oct 1 0:00 0 S Rule Taiwan 1979 only - Jul 1 0:00 1:00 D Rule Taiwan 1979 only - Oct 1 0:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # Taipei or Taibei or T'ai-pei Zone Asia/Taipei 8:06:00 - LMT 1896 Jan 1 8:00 - CST 1937 Oct 1 @@ -1017,7 +1017,7 @@ Rule Macau 1975 1976 - Apr Sun>=16 03:30 1:00 D Rule Macau 1979 only - May 13 03:30 1:00 D Rule Macau 1979 only - Oct Sun>=16 03:30 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Macau 7:34:10 - LMT 1904 Oct 30 8:00 - CST 1941 Dec 21 23:00 9:00 Macau +09/+10 1945 Sep 30 24:00 @@ -1056,7 +1056,7 @@ Rule Cyprus 1977 only - Sep 25 0:00 0 - Rule Cyprus 1978 only - Oct 2 0:00 0 - Rule Cyprus 1979 1997 - Sep lastSun 0:00 0 - Rule Cyprus 1981 1998 - Mar lastSun 0:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Nicosia 2:13:28 - LMT 1921 Nov 14 2:00 Cyprus EE%sT 1998 Sep 2:00 EUAsia EE%sT @@ -1105,7 +1105,7 @@ Link Asia/Nicosia Europe/Nicosia # Byalokoz 1919 says Georgia was 2:59:11. # Go with Byalokoz. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Tbilisi 2:59:11 - LMT 1880 2:59:11 - TBMT 1924 May 2 # Tbilisi Mean Time 3:00 - +03 1957 Mar @@ -1142,7 +1142,7 @@ Zone Asia/Tbilisi 2:59:11 - LMT 1880 # which will be permanent, with no seasonal adjustment, will happen at # midnight on Saturday, September 16. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1 8:00 - +08 1942 Feb 21 23:00 9:00 - +09 1976 May 3 @@ -1208,7 +1208,7 @@ Zone Asia/Dili 8:22:20 - LMT 1912 Jan 1 # time for 1870-1941. Shanks is our only (and dubious) source for the # 1941-1945 data. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata 5:53:20 - HMT 1870 # Howrah Mean Time? 5:21:10 - MMT 1906 Jan 1 # Madras local time @@ -1260,7 +1260,7 @@ Zone Asia/Kolkata 5:53:28 - LMT 1854 Jun 28 # Kolkata # WITA - +08 - Waktu Indonesia Tengah (Indonesia central time) # WIT - +09 - Waktu Indonesia Timur (Indonesia eastern time) # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # Java, Sumatra Zone Asia/Jakarta 7:07:12 - LMT 1867 Aug 10 # Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13, @@ -1532,7 +1532,7 @@ Rule Iran 2087 only - Sep 21 24:00 0 - Rule Iran 2088 max - Mar 20 24:00 1:00 - Rule Iran 2088 max - Sep 20 24:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Tehran 3:25:44 - LMT 1916 3:25:44 - TMT 1946 # Tehran Mean Time 3:30 - +0330 1977 Nov @@ -1577,7 +1577,7 @@ Rule Iraq 1986 1990 - Mar lastSun 1:00s 1:00 - # Rule Iraq 1991 2007 - Apr 1 3:00s 1:00 - Rule Iraq 1991 2007 - Oct 1 3:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Baghdad 2:57:40 - LMT 1890 2:57:36 - BMT 1918 # Baghdad Mean Time? 3:00 - +03 1982 May @@ -1806,7 +1806,7 @@ Rule Zion 2012 only - Sep 23 2:00 0 S Rule Zion 2013 max - Mar Fri>=23 2:00 1:00 D Rule Zion 2013 max - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Jerusalem 2:20:54 - LMT 1880 2:20:40 - JMT 1918 # Jerusalem Mean Time? 2:00 Zion I%sT @@ -1898,7 +1898,7 @@ Rule Japan 1950 1951 - May Sat>=1 24:00 1:00 D # Central Time (UT+9). The adoption began on Oct 1, 1937. # https://ja.wikisource.org/wiki/明治二十八年勅令第百六十七號標準時ニ關スル件中改正ノ件 -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Tokyo 9:18:59 - LMT 1887 Dec 31 15:00u 9:00 Japan J%sT # Since 1938, all Japanese possessions have been like Asia/Tokyo, @@ -2001,7 +2001,7 @@ Rule Jordan 2006 2011 - Oct lastFri 0:00s 0 - Rule Jordan 2013 only - Dec 20 0:00 0 - Rule Jordan 2014 max - Mar lastThu 24:00 1:00 S Rule Jordan 2014 max - Oct lastFri 0:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Amman 2:23:44 - LMT 1931 2:00 Jordan EE%sT @@ -2198,7 +2198,7 @@ Zone Asia/Amman 2:23:44 - LMT 1931 # UTC+6 to UTC+5 effective December 21st, 2018. The legal document is # located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language). -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # # Almaty (formerly Alma-Ata), representing most locations in Kazakhstan # This includes KZ-AKM, KZ-ALA, KZ-ALM, KZ-AST, KZ-BAY, KZ-VOS, KZ-ZHA, @@ -2300,7 +2300,7 @@ Rule Kyrgyz 1992 1996 - Apr Sun>=7 0:00s 1:00 - Rule Kyrgyz 1992 1996 - Sep lastSun 0:00 0 - Rule Kyrgyz 1997 2005 - Mar lastSun 2:30 1:00 - Rule Kyrgyz 1997 2004 - Oct lastSun 2:30 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Bishkek 4:58:24 - LMT 1924 May 2 5:00 - +05 1930 Jun 21 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s @@ -2415,7 +2415,7 @@ Rule ROK 1987 1988 - Oct Sun>=8 3:00 0 S # The BBC reported that the transition was from 23:30 to 24:00 today. # https://www.bbc.com/news/world-asia-44010705 -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Seoul 8:27:52 - LMT 1908 Apr 1 8:30 - KST 1912 Jan 1 9:00 - JST 1945 Sep 8 @@ -2464,7 +2464,7 @@ Rule Lebanon 1992 only - Oct 4 0:00 0 - Rule Lebanon 1993 max - Mar lastSun 0:00 1:00 S Rule Lebanon 1993 1998 - Sep lastSun 0:00 0 - Rule Lebanon 1999 max - Oct lastSun 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Beirut 2:22:00 - LMT 1880 2:00 Lebanon EE%sT @@ -2476,7 +2476,7 @@ Rule NBorneo 1935 1941 - Dec 14 0:00 0 - # peninsular Malaysia # taken from Mok Ly Yng (2003-10-30) # http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 7:00 - +07 1933 Jan 1 @@ -2490,7 +2490,7 @@ Zone Asia/Kuala_Lumpur 6:46:46 - LMT 1901 Jan 1 # From Paul Eggert (2014-08-12): # The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945 # and 1982 transition dates are from Mok Ly Yng. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Kuching 7:21:20 - LMT 1926 Mar 7:30 - +0730 1933 8:00 NBorneo +08/+0820 1942 Feb 16 @@ -2498,7 +2498,7 @@ Zone Asia/Kuching 7:21:20 - LMT 1926 Mar 8:00 - +08 # Maldives -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Maldives 4:54:00 - LMT 1880 # Malé 4:54:00 - MMT 1960 # Malé Mean Time 5:00 - +05 @@ -2641,7 +2641,7 @@ Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 - Rule Mongol 2015 2016 - Mar lastSat 2:00 1:00 - Rule Mongol 2015 2016 - Sep lastSat 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # Hovd, a.k.a. Chovd, Dund-Us, Dzhargalant, Khovd, Jirgalanta Zone Asia/Hovd 6:06:36 - LMT 1905 Aug 6:00 - +06 1978 @@ -2659,7 +2659,7 @@ Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug 8:00 Mongol +08/+09 # Nepal -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Kathmandu 5:41:16 - LMT 1920 5:30 - +0530 1986 5:45 - +0545 @@ -2809,7 +2809,7 @@ Rule Pakistan 2008 only - Jun 1 0:00 1:00 S Rule Pakistan 2008 2009 - Nov 1 0:00 0 - Rule Pakistan 2009 only - Apr 15 0:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Karachi 4:28:12 - LMT 1907 5:30 - +0530 1942 Sep 5:30 1:00 +0630 1945 Oct 15 @@ -3145,7 +3145,7 @@ Rule Palestine 2016 2018 - Mar Sat>=24 1:00 1:00 S Rule Palestine 2016 max - Oct lastSat 1:00 0 - Rule Palestine 2019 max - Mar lastFri 0:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Gaza 2:17:52 - LMT 1900 Oct 2:00 Zion EET/EEST 1948 May 15 2:00 EgyptAsia EE%sT 1967 Jun 5 @@ -3219,7 +3219,7 @@ Rule Phil 1954 only - Apr 12 0:00 1:00 D Rule Phil 1954 only - Jul 1 0:00 0 S Rule Phil 1978 only - Mar 22 0:00 1:00 D Rule Phil 1978 only - Sep 21 0:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 8:04:00 - LMT 1899 May 11 8:00 Phil P%sT 1942 May @@ -3227,7 +3227,7 @@ Zone Asia/Manila -15:56:00 - LMT 1844 Dec 31 8:00 Phil P%sT # Qatar -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Qatar 3:26:08 - LMT 1920 # Al Dawhah / Doha 4:00 - +04 1972 Jun 3:00 - +03 @@ -3275,7 +3275,7 @@ Link Asia/Qatar Asia/Bahrain # the country. Presumably this is documenting airline time. Ignore this, # as it's before our 1970 cutoff. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Riyadh 3:06:52 - LMT 1947 Mar 14 3:00 - +03 Link Asia/Riyadh Asia/Aden # Yemen @@ -3284,7 +3284,7 @@ Link Asia/Riyadh Asia/Kuwait # Singapore # taken from Mok Ly Yng (2003-10-30) # http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 6:55:25 - SMT 1905 Jun 1 # Singapore M.T. 7:00 - +07 1933 Jan 1 @@ -3348,7 +3348,7 @@ Zone Asia/Singapore 6:55:25 - LMT 1901 Jan 1 # even worse. For now, let's use a numeric abbreviation; we can # switch to "SLST" if it catches on. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Colombo 5:19:24 - LMT 1880 5:19:32 - MMT 1906 # Moratuwa Mean Time 5:30 - +0530 1942 Jan 5 @@ -3518,13 +3518,13 @@ Rule Syria 2010 2011 - Apr Fri>=1 0:00 1:00 S Rule Syria 2012 max - Mar lastFri 0:00 1:00 S Rule Syria 2009 max - Oct lastFri 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Damascus 2:25:12 - LMT 1920 # Dimashq 2:00 Syria EE%sT # Tajikistan # From Shanks & Pottenger. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 5:00 - +05 1930 Jun 21 6:00 RussiaAsia +06/+07 1991 Mar 31 2:00s @@ -3532,7 +3532,7 @@ Zone Asia/Dushanbe 4:35:12 - LMT 1924 May 2 5:00 - +05 # Thailand -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Bangkok 6:42:04 - LMT 1880 6:42:04 - BMT 1920 Apr # Bangkok Mean Time 7:00 - +07 @@ -3541,7 +3541,7 @@ Link Asia/Bangkok Asia/Vientiane # Laos # Turkmenistan # From Shanks & Pottenger. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad 4:00 - +04 1930 Jun 21 5:00 RussiaAsia +05/+06 1991 Mar 31 2:00 @@ -3549,14 +3549,14 @@ Zone Asia/Ashgabat 3:53:32 - LMT 1924 May 2 # or Ashkhabad 5:00 - +05 # United Arab Emirates -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Dubai 3:41:12 - LMT 1920 4:00 - +04 Link Asia/Dubai Asia/Muscat # Oman # Uzbekistan # Byalokoz 1919 says Uzbekistan was 4:27:53. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Samarkand 4:27:53 - LMT 1924 May 2 4:00 - +04 1930 Jun 21 5:00 - +05 1981 Apr 1 @@ -3622,7 +3622,7 @@ Zone Asia/Tashkent 4:37:11 - LMT 1924 May 2 # Lê Thành Lân: "Lịch hai thế kỷ (1802-2010) và các lịch vĩnh cửu", # NXB Thuận Hoá, Huế, 1995. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Asia/Ho_Chi_Minh 7:06:40 - LMT 1906 Jul 1 7:06:30 - PLMT 1911 May 1 # Phù Liễn MT 7:00 - +07 1942 Dec 31 23:00 diff --git a/australasia b/australasia index eff74a4..b30e3f6 100644 --- a/australasia +++ b/australasia @@ -25,7 +25,7 @@ Rule Aus 1943 only - Oct 3 2:00 1:00 D # says W Australia didn't use DST in 1943/1944. Ignore Whitman's claim that # 1944/1945 was just like 1943/1944. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # Northern Territory Zone Australia/Darwin 8:43:20 - LMT 1895 Feb 9:00 - ACST 1899 May @@ -102,7 +102,7 @@ Rule AS 2006 only - Apr 2 2:00s 0 S Rule AS 2007 only - Mar lastSun 2:00s 0 S Rule AS 2008 max - Apr Sun>=1 2:00s 0 S Rule AS 2008 max - Oct Sun>=1 2:00s 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Australia/Adelaide 9:14:20 - LMT 1895 Feb 9:00 - ACST 1899 May 9:30 Aus AC%sT 1971 @@ -134,7 +134,7 @@ Rule AT 2001 max - Oct Sun>=1 2:00s 1:00 D Rule AT 2006 only - Apr Sun>=1 2:00s 0 S Rule AT 2007 only - Mar lastSun 2:00s 0 S Rule AT 2008 max - Apr Sun>=1 2:00s 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Australia/Hobart 9:49:16 - LMT 1895 Sep 10:00 - AEST 1916 Oct 1 2:00 10:00 1:00 AEDT 1917 Feb @@ -162,7 +162,7 @@ Rule AV 2006 only - Apr Sun>=1 2:00s 0 S Rule AV 2007 only - Mar lastSun 2:00s 0 S Rule AV 2008 max - Apr Sun>=1 2:00s 0 S Rule AV 2008 max - Oct Sun>=1 2:00s 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Australia/Melbourne 9:39:52 - LMT 1895 Feb 10:00 Aus AE%sT 1971 10:00 AV AE%sT @@ -185,7 +185,7 @@ Rule AN 2006 only - Apr Sun>=1 2:00s 0 S Rule AN 2007 only - Mar lastSun 2:00s 0 S Rule AN 2008 max - Apr Sun>=1 2:00s 0 S Rule AN 2008 max - Oct Sun>=1 2:00s 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Australia/Sydney 10:04:52 - LMT 1895 Feb 10:00 Aus AE%sT 1971 10:00 AN AE%sT @@ -256,14 +256,14 @@ Zone Antarctica/Macquarie 0 - -00 1899 Nov 11:00 - +11 # Christmas -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Christmas 7:02:52 - LMT 1895 Feb 7:00 - +07 # Cocos (Keeling) Is # These islands were ruled by the Ross family from about 1830 to 1978. # We don't know when standard time was introduced; for now, we guess 1900. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Indian/Cocos 6:27:40 - LMT 1900 6:30 - +0630 @@ -386,12 +386,12 @@ Rule Fiji 2012 2013 - Jan Sun>=18 3:00 0 - Rule Fiji 2014 only - Jan Sun>=18 2:00 0 - Rule Fiji 2014 max - Nov Sun>=1 2:00 1:00 - Rule Fiji 2015 max - Jan Sun>=13 3:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Fiji 11:55:44 - LMT 1915 Oct 26 # Suva 12:00 Fiji +12/+13 # French Polynesia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Gambier -8:59:48 - LMT 1912 Oct # Rikitea -9:00 - -09 Zone Pacific/Marquesas -9:18:00 - LMT 1912 Oct @@ -434,7 +434,7 @@ Rule Guam 1977 only - Apr 24 2:00 1:00 D # http://documents.guam.gov/wp-content/uploads/E.O.-77-18-Guam-Standard-Time.… Rule Guam 1977 only - Aug 28 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31 9:39:00 - LMT 1901 # Agana 10:00 - GST 1941 Dec 10 # Guam @@ -444,7 +444,7 @@ Zone Pacific/Guam -14:21:00 - LMT 1844 Dec 31 Link Pacific/Guam Pacific/Saipan # N Mariana Is # Kiribati -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Tarawa 11:32:04 - LMT 1901 # Bairiki 12:00 - +12 Zone Pacific/Enderbury -11:24:20 - LMT 1901 @@ -460,7 +460,7 @@ Zone Pacific/Kiritimati -10:29:20 - LMT 1901 # See Pacific/Guam. # Marshall Is -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Majuro 11:24:48 - LMT 1901 11:00 - +11 1914 Oct 9:00 - +09 1919 Feb 1 @@ -478,7 +478,7 @@ Zone Pacific/Kwajalein 11:09:20 - LMT 1901 12:00 - +12 # Micronesia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Chuuk -13:52:52 - LMT 1844 Dec 31 10:07:08 - LMT 1901 10:00 - +10 1914 Oct @@ -506,7 +506,7 @@ Zone Pacific/Kosrae -13:08:04 - LMT 1844 Dec 31 11:00 - +11 # Nauru -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Nauru 11:07:40 - LMT 1921 Jan 15 # Uaobe 11:30 - +1130 1942 Aug 29 9:00 - +09 1945 Sep 8 @@ -520,7 +520,7 @@ Rule NC 1978 1979 - Feb 27 0:00 0 - Rule NC 1996 only - Dec 1 2:00s 1:00 - # Shanks & Pottenger say the following was at 2:00; go with IATA. Rule NC 1997 only - Mar 2 2:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Noumea 11:05:48 - LMT 1912 Jan 13 # Nouméa 11:00 NC +11/+12 @@ -559,7 +559,7 @@ Rule NZ 2007 max - Sep lastSun 2:00s 1:00 D Rule Chatham 2007 max - Sep lastSun 2:45s 1:00 - Rule NZ 2008 max - Apr Sun>=1 2:00s 0 S Rule Chatham 2008 max - Apr Sun>=1 2:45s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Auckland 11:39:04 - LMT 1868 Nov 2 11:30 NZ NZ%sT 1946 Jan 1 12:00 NZ NZ%sT @@ -585,7 +585,7 @@ Link Pacific/Auckland Antarctica/McMurdo Rule Cook 1978 only - Nov 12 0:00 0:30 - Rule Cook 1979 1991 - Mar Sun>=1 0:00 0 - Rule Cook 1979 1990 - Oct lastSun 0:00 0:30 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua -10:30 - -1030 1978 Nov 12 -10:00 Cook -10/-0930 @@ -594,14 +594,14 @@ Zone Pacific/Rarotonga -10:39:04 - LMT 1901 # Avarua # Niue -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Niue -11:19:40 - LMT 1901 # Alofi -11:20 - -1120 1951 -11:30 - -1130 1978 Oct 1 -11:00 - -11 # Norfolk -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston 11:12 - +1112 1951 11:30 - +1130 1974 Oct 27 02:00 @@ -610,13 +610,13 @@ Zone Pacific/Norfolk 11:11:52 - LMT 1901 # Kingston 11:00 - +11 # Palau (Belau) -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Palau -15:02:04 - LMT 1844 Dec 31 # Koror 8:57:56 - LMT 1901 9:00 - +09 # Papua New Guinea -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Port_Moresby 9:48:40 - LMT 1880 9:48:32 - PMMT 1895 # Port Moresby Mean Time 10:00 - +10 @@ -646,7 +646,7 @@ Zone Pacific/Bougainville 10:22:16 - LMT 1880 11:00 - +11 # Pitcairn -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Pitcairn -8:40:20 - LMT 1901 # Adamstown -8:30 - -0830 1998 Apr 27 0:00 -8:00 - -08 @@ -731,7 +731,7 @@ Rule WS 2011 only - Apr Sat>=1 4:00 0 - Rule WS 2011 only - Sep lastSat 3:00 1 - Rule WS 2012 max - Apr Sun>=1 4:00 0 - Rule WS 2012 max - Sep lastSun 3:00 1 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Apia 12:33:04 - LMT 1892 Jul 5 -11:26:56 - LMT 1911 -11:30 - -1130 1950 @@ -740,7 +740,7 @@ Zone Pacific/Apia 12:33:04 - LMT 1892 Jul 5 # Solomon Is # excludes Bougainville, for which see Papua New Guinea -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara 11:00 - +11 @@ -763,7 +763,7 @@ Zone Pacific/Guadalcanal 10:39:48 - LMT 1912 Oct # Honiara # was "11 hours slow on G.M.T." Go with Thorsen and assume Shanks & Pottenger # are off by an hour starting in 1901. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Fakaofo -11:24:56 - LMT 1901 -11:00 - -11 2011 Dec 30 13:00 - +13 @@ -776,14 +776,14 @@ Rule Tonga 2000 2001 - Nov Sun>=1 2:00 1:00 - Rule Tonga 2001 2002 - Jan lastSun 2:00 0 - Rule Tonga 2016 only - Nov Sun>=1 2:00 1:00 - Rule Tonga 2017 only - Jan Sun>=15 3:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Tongatapu 12:19:20 - LMT 1901 12:20 - +1220 1941 13:00 - +13 1999 13:00 Tonga +13/+14 # Tuvalu -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Funafuti 11:56:52 - LMT 1901 12:00 - +12 @@ -844,7 +844,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901 # uninhabited since World War II; was probably like Pacific/Kiritimati # Wake -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Wake 11:06:28 - LMT 1901 12:00 - +12 @@ -857,12 +857,12 @@ Rule Vanuatu 1984 only - Oct 23 0:00 1:00 - Rule Vanuatu 1985 1991 - Sep Sun>=23 0:00 1:00 - Rule Vanuatu 1992 1993 - Jan Sun>=23 0:00 0 - Rule Vanuatu 1992 only - Oct Sun>=23 0:00 1:00 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Efate 11:13:16 - LMT 1912 Jan 13 # Vila 11:00 Vanuatu +11/+12 # Wallis and Futuna -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Wallis 12:15:20 - LMT 1901 12:00 - +12 diff --git a/backzone b/backzone index 380c492..b3d6efd 100644 --- a/backzone +++ b/backzone @@ -38,7 +38,7 @@ # commentary and rules associated with the entry. # # As explained in the zic man page, the zone columns are: -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # Ethiopia # From Paul Eggert (2014-07-31): diff --git a/europe b/europe index 80c31fc..d3bd2df 100644 --- a/europe +++ b/europe @@ -122,7 +122,7 @@ # position is 51° 28' 30" N, 0° 18' 45" W. The longitude should # be within about ±2". The Ordnance Survey grid reference is TQ172761. # -# [This yields GMTOFF = -0:01:15 for London LMT in the 18th century.] +# [This yields UTOFF = -0:01:15 for London LMT in the 18th century.] # From Paul Eggert (1993-11-18): # @@ -500,7 +500,7 @@ Rule GB-Eire 1990 1995 - Oct Sun>=22 1:00u 0 GMT # # Use Europe/London for Jersey, Guernsey, and the Isle of Man. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/London -0:01:15 - LMT 1847 Dec 1 0:00s 0:00 GB-Eire %s 1968 Oct 27 1:00 - BST 1971 Oct 31 2:00u @@ -538,7 +538,7 @@ Rule Eire 1981 1989 - Oct Sun>=23 1:00u -1:00 - Rule Eire 1990 1995 - Oct Sun>=22 1:00u -1:00 - Rule Eire 1996 max - Oct lastSun 1:00u -1:00 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Dublin -0:25:00 - LMT 1880 Aug 2 -0:25:21 - DMT 1916 May 21 2:00s -0:25:21 1:00 IST 1916 Oct 1 2:00s @@ -737,7 +737,7 @@ Rule Russia 1996 2010 - Oct lastSun 2:00s 0 - # These are for backward compatibility with older versions. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone WET 0:00 EU WE%sT Zone CET 1:00 C-Eur CE%sT Zone MET 1:00 C-Eur ME%sT @@ -797,14 +797,14 @@ Rule Albania 1982 only - Oct 3 0:00 0 - Rule Albania 1983 only - Apr 18 0:00 1:00 S Rule Albania 1983 only - Oct 1 0:00 0 - Rule Albania 1984 only - Apr 1 0:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Tirane 1:19:20 - LMT 1914 1:00 - CET 1940 Jun 16 1:00 Albania CE%sT 1984 Jul 1:00 EU CE%sT # Andorra -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Andorra 0:06:04 - LMT 1901 0:00 - WET 1946 Sep 30 1:00 - CET 1985 Mar 31 2:00 @@ -830,7 +830,7 @@ Rule Austria 1947 only - Apr 6 2:00s 1:00 S Rule Austria 1948 only - Apr 18 2:00s 1:00 S Rule Austria 1980 only - Apr 6 0:00 1:00 S Rule Austria 1980 only - Sep 28 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Vienna 1:05:21 - LMT 1893 Apr 1:00 C-Eur CE%sT 1920 1:00 Austria CE%sT 1940 Apr 1 2:00s @@ -862,7 +862,7 @@ Zone Europe/Vienna 1:05:21 - LMT 1893 Apr # Belarussian government decided against changing to winter time.... # http://eng.belta.by/all_news/society/Belarus-decides-against-adjusting-time… # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Minsk 1:50:16 - LMT 1880 1:50 - MMT 1924 May 2 # Minsk Mean Time 2:00 - EET 1930 Jun 21 @@ -926,7 +926,7 @@ Rule Belgium 1945 only - Apr 2 2:00s 1:00 S Rule Belgium 1945 only - Sep 16 2:00s 0 - Rule Belgium 1946 only - May 19 2:00s 1:00 S Rule Belgium 1946 only - Oct 7 2:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Brussels 0:17:30 - LMT 1880 0:17:30 - BMT 1892 May 1 12:00 # Brussels MT 0:00 - WET 1914 Nov 8 @@ -953,7 +953,7 @@ Rule Bulg 1979 only - Oct 1 1:00 0 - Rule Bulg 1980 1982 - Apr Sat>=1 23:00 1:00 S Rule Bulg 1980 only - Sep 29 1:00 0 - Rule Bulg 1981 only - Sep 27 2:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Sofia 1:33:16 - LMT 1880 1:56:56 - IMT 1894 Nov 30 # Istanbul MT? 2:00 - EET 1942 Nov 2 3:00 @@ -986,7 +986,7 @@ Rule Czech 1946 only - May 6 2:00s 1:00 S Rule Czech 1946 1949 - Oct Sun>=1 2:00s 0 - Rule Czech 1947 1948 - Apr Sun>=15 2:00s 1:00 S Rule Czech 1949 only - Apr 9 2:00s 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Prague 0:57:44 - LMT 1850 0:57:44 - PMT 1891 Oct # Prague Mean Time 1:00 C-Eur CE%sT 1945 May 9 @@ -1048,7 +1048,7 @@ Rule Denmark 1947 only - Aug 10 2:00s 0 - Rule Denmark 1948 only - May 9 2:00s 1:00 S Rule Denmark 1948 only - Aug 8 2:00s 0 - # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Copenhagen 0:50:20 - LMT 1890 0:50:20 - CMT 1894 Jan 1 # Copenhagen MT 1:00 Denmark CE%sT 1942 Nov 2 2:00s @@ -1145,7 +1145,7 @@ Rule Thule 1993 2006 - Oct lastSun 2:00 0 S Rule Thule 2007 max - Mar Sun>=8 2:00 1:00 D Rule Thule 2007 max - Nov Sun>=1 2:00 0 S # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Danmarkshavn -1:14:40 - LMT 1916 Jul 28 -3:00 - -03 1980 Apr 6 2:00 -3:00 EU -03/-02 1996 @@ -1211,7 +1211,7 @@ Zone America/Thule -4:35:08 - LMT 1916 Jul 28 # Pituffik air base # From Urmet Jänes (2002-03-28): # The legislative reference is Government decree No. 84 on 2002-02-21. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Tallinn 1:39:00 - LMT 1880 1:39:00 - TMT 1918 Feb # Tallinn Mean Time 1:00 C-Eur CE%sT 1919 Jul @@ -1274,7 +1274,7 @@ Rule Finland 1981 1982 - Sep lastSun 3:00 0 - # Milne says Helsinki (Helsingfors) time was 1:39:49.2 (official document); # round to nearest. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Helsinki 1:39:49 - LMT 1878 May 31 1:39:49 - HMT 1921 May # Helsinki Mean Time 2:00 Finland EE%sT 1983 @@ -1364,7 +1364,7 @@ Rule France 1976 only - Sep 26 1:00 0 - # but Howse quotes the actual French legislation as saying 0:09:21. # Go with Howse. Howse writes that the time in France was officially based # on PMT-0:09:21 until 1978-08-09, when the time base finally switched to UTC. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01 0:09:21 - PMT 1911 Mar 11 0:01 # Paris MT # Shanks & Pottenger give 1940 Jun 14 0:00; go with Excoffier and Le Corre. @@ -1412,7 +1412,7 @@ Rule SovietZone 1945 only - May 24 2:00 2:00 M # Midsummer Rule SovietZone 1945 only - Sep 24 3:00 1:00 S Rule SovietZone 1945 only - Nov 18 2:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Berlin 0:53:28 - LMT 1893 Apr 1:00 C-Eur CE%sT 1945 May 24 2:00 1:00 SovietZone CE%sT 1946 @@ -1440,7 +1440,7 @@ Link Europe/Zurich Europe/Busingen # is in Europe. Our reference location Tbilisi is in the Asian part. # Gibraltar -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Gibraltar -0:21:24 - LMT 1880 Aug 2 0:00s 0:00 GB-Eire %s 1957 Apr 14 2:00 1:00 - CET 1982 @@ -1471,7 +1471,7 @@ Rule Greece 1979 only - Apr 1 9:00 1:00 S Rule Greece 1979 only - Sep 29 2:00 0 - Rule Greece 1980 only - Apr 1 0:00 1:00 S Rule Greece 1980 only - Sep 28 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Athens 1:34:52 - LMT 1895 Sep 14 1:34:52 - AMT 1916 Jul 28 0:01 # Athens MT 2:00 Greece EE%sT 1941 Apr 30 @@ -1508,7 +1508,7 @@ Rule Hungary 1956 only - Sep lastSun 0:00 0 - Rule Hungary 1957 only - Jun Sun>=1 1:00 1:00 S Rule Hungary 1957 only - Sep lastSun 3:00 0 - Rule Hungary 1980 only - Apr 6 1:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Budapest 1:16:20 - LMT 1890 Oct 1:00 C-Eur CE%sT 1918 1:00 Hungary CE%sT 1941 Apr 8 @@ -1569,7 +1569,7 @@ Rule Iceland 1947 1967 - Apr Sun>=1 1:00s 1:00 - Rule Iceland 1949 only - Oct 30 1:00s 0 - Rule Iceland 1950 1966 - Oct Sun>=22 1:00s 0 - Rule Iceland 1967 only - Oct 29 1:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Atlantic/Reykjavik -1:28 - LMT 1908 -1:00 Iceland -01/+00 1968 Apr 7 1:00s 0:00 - GMT @@ -1676,7 +1676,7 @@ Rule Italy 1976 only - May 30 0:00s 1:00 S Rule Italy 1977 1979 - May Sun>=22 0:00s 1:00 S Rule Italy 1978 only - Oct 1 0:00s 0 - Rule Italy 1979 only - Sep 30 0:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Rome 0:49:56 - LMT 1866 Dec 12 0:49:56 - RMT 1893 Oct 31 23:49:56 # Rome Mean 1:00 Italy CE%sT 1943 Sep 10 @@ -1752,7 +1752,7 @@ Rule Latvia 1989 1996 - Sep lastSun 2:00s 0 - # Byalokoz 1919 says Latvia was 1:36:34. # Go with Byalokoz. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Riga 1:36:34 - LMT 1880 1:36:34 - RMT 1918 Apr 15 2:00 # Riga MT 1:36:34 1:00 LST 1918 Sep 16 3:00 # Latvian ST @@ -1822,7 +1822,7 @@ Link Europe/Zurich Europe/Vaduz # http://www.lrvk.lt/nut/11/n1749.htm -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Vilnius 1:41:16 - LMT 1880 1:24:00 - WMT 1917 # Warsaw Mean Time 1:35:36 - KMT 1919 Oct 10 # Kaunas Mean Time @@ -1866,7 +1866,7 @@ Rule Lux 1926 only - Apr 17 23:00 1:00 S Rule Lux 1927 only - Apr 9 23:00 1:00 S Rule Lux 1928 only - Apr 14 23:00 1:00 S Rule Lux 1929 only - Apr 20 23:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Luxembourg 0:24:36 - LMT 1904 Jun 1:00 Lux CE%sT 1918 Nov 25 0:00 Lux WE%sT 1929 Oct 6 2:00s @@ -1891,7 +1891,7 @@ Rule Malta 1974 only - Sep 16 0:00s 0 - Rule Malta 1975 1979 - Apr Sun>=15 2:00 1:00 S Rule Malta 1975 1980 - Sep Sun>=15 2:00 0 - Rule Malta 1980 only - Mar 31 2:00 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta 1:00 Italy CE%sT 1973 Mar 31 1:00 Malta CE%sT 1981 @@ -1960,7 +1960,7 @@ Zone Europe/Malta 0:58:04 - LMT 1893 Nov 2 0:00s # Valletta Rule Moldova 1997 max - Mar lastSun 2:00 1:00 S Rule Moldova 1997 max - Oct lastSun 3:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Chisinau 1:55:20 - LMT 1880 1:55 - CMT 1918 Feb 15 # Chisinau MT 1:44:24 - BMT 1931 Jul 24 # Bucharest MT @@ -1976,7 +1976,7 @@ Zone Europe/Chisinau 1:55:20 - LMT 1880 # Monaco # Shanks & Pottenger give 0:09:20 for Paris Mean Time; go with Howse's # more precise 0:09:21. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 0:09:21 - PMT 1911 Mar 11 # Paris Mean Time 0:00 France WE%sT 1945 Sep 16 3:00 @@ -2051,8 +2051,8 @@ Rule Neth 1945 only - Apr 2 2:00s 1:00 S Rule Neth 1945 only - Sep 16 2:00s 0 - # # Amsterdam Mean Time was +00:19:32.13, but the .13 is omitted -# below because the current format requires GMTOFF to be an integer. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# below because the current format requires UTOFF to be an integer. +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Amsterdam 0:19:32 - LMT 1835 0:19:32 Neth %s 1937 Jul 1 0:20 Neth +0020/+0120 1940 May 16 0:00 @@ -2071,7 +2071,7 @@ Rule Norway 1945 only - Oct 1 2:00s 0 - Rule Norway 1959 1964 - Mar Sun>=15 2:00s 1:00 S Rule Norway 1959 1965 - Sep Sun>=15 2:00s 0 - Rule Norway 1965 only - Apr 25 2:00s 1:00 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Oslo 0:43:00 - LMT 1895 Jan 1 1:00 Norway CE%sT 1940 Aug 10 23:00 1:00 C-Eur CE%sT 1945 Apr 2 2:00 @@ -2162,7 +2162,7 @@ Rule Poland 1959 1961 - Oct Sun>=1 1:00s 0 - Rule Poland 1960 only - Apr 3 1:00s 1:00 S Rule Poland 1961 1964 - May lastSun 1:00s 1:00 S Rule Poland 1962 1964 - Sep lastSun 1:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Warsaw 1:24:00 - LMT 1880 1:24:00 - WMT 1915 Aug 5 # Warsaw Mean Time 1:00 C-Eur CE%sT 1918 Sep 16 3:00 @@ -2267,7 +2267,7 @@ Rule Port 1980 only - Mar lastSun 0:00s 1:00 S Rule Port 1981 1982 - Mar lastSun 1:00s 1:00 S Rule Port 1983 only - Mar lastSun 2:00s 1:00 S # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Lisbon -0:36:45 - LMT 1884 -0:36:45 - LMT 1912 Jan 1 0:00u # Lisbon MT 0:00 Port WE%sT 1966 Apr 3 2:00 @@ -2326,7 +2326,7 @@ Rule Romania 1980 only - Apr 5 23:00 1:00 S Rule Romania 1980 only - Sep lastSun 1:00 0 - Rule Romania 1991 1993 - Mar lastSun 0:00s 1:00 S Rule Romania 1991 1993 - Sep lastSun 0:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Bucharest 1:44:24 - LMT 1891 Oct 1:44:24 - BMT 1931 Jul 24 # Bucharest MT 2:00 Romania EE%sT 1981 Mar 29 2:00s @@ -3365,7 +3365,7 @@ Zone Asia/Anadyr 11:49:56 - LMT 1924 May 2 # See Europe/Rome. # Serbia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Belgrade 1:22:00 - LMT 1884 1:00 - CET 1941 Apr 18 23:00 1:00 C-Eur CE%sT 1945 @@ -3471,7 +3471,7 @@ Rule SpainAfrica 1976 only - Aug 1 0:00 0 - Rule SpainAfrica 1977 only - Sep 28 0:00 0 - Rule SpainAfrica 1978 only - Jun 1 0:00 1:00 S Rule SpainAfrica 1978 only - Aug 4 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Madrid -0:14:44 - LMT 1900 Dec 31 23:45:16 0:00 Spain WE%sT 1940 Mar 16 23:00 1:00 Spain CE%sT 1979 @@ -3539,7 +3539,7 @@ Zone Atlantic/Canary -1:01:36 - LMT 1922 Mar # Las Palmas de Gran C. # # Source: The newspaper "Dagens Nyheter", 1916-10-01, page 7 upper left. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1 1:00:14 - SET 1900 Jan 1 # Swedish Time 1:00 - CET 1916 May 14 23:00 @@ -3642,7 +3642,7 @@ Zone Europe/Stockholm 1:12:12 - LMT 1879 Jan 1 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Zurich 0:34:08 - LMT 1853 Jul 16 # See above comment. 0:29:46 - BMT 1894 Jun # Bern Mean Time 1:00 Swiss CE%sT 1981 @@ -3792,7 +3792,7 @@ Rule Turkey 1986 1995 - Sep lastSun 1:00s 0 - Rule Turkey 1994 only - Mar 20 1:00s 1:00 S Rule Turkey 1995 2006 - Mar lastSun 1:00s 1:00 S Rule Turkey 1996 2006 - Oct lastSun 1:00s 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/Istanbul 1:55:52 - LMT 1880 1:56:56 - IMT 1910 Oct # Istanbul Mean Time? 2:00 Turkey EE%sT 1978 Oct 15 @@ -3890,7 +3890,7 @@ Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # English; in the meantime, stick with the traditional English "Kiev" as that # means less disruption for our users. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # This represents most of Ukraine. See above for the spelling of "Kiev". Zone Europe/Kiev 2:02:04 - LMT 1880 2:02:04 - KMT 1924 May 2 # Kiev Mean Time diff --git a/factory b/factory index d4e7659..9165f59 100644 --- a/factory +++ b/factory @@ -8,5 +8,5 @@ # time zone abbreviation "-00", indicating that the actual time zone # is unknown. -# Zone NAME GMTOFF RULES FORMAT +# Zone NAME UTOFF RULES FORMAT Zone Factory 0 - -00 diff --git a/localtime.c b/localtime.c index ac3790a..033e88f 100644 --- a/localtime.c +++ b/localtime.c @@ -98,11 +98,11 @@ static const char gmt[] = "GMT"; #endif struct ttinfo { /* time type information */ - int_fast32_t tt_gmtoff; /* UT offset in seconds */ + int_fast32_t tt_utoff; /* UT offset in seconds */ bool tt_isdst; /* used to set tm_isdst */ - int tt_abbrind; /* abbreviation list index */ + int tt_desigidx; /* abbreviation list index */ bool tt_ttisstd; /* transition is std time */ - bool tt_ttisgmt; /* transition is UT */ + bool tt_ttisut; /* transition is UT */ }; struct lsinfo { /* leap second information */ @@ -209,15 +209,15 @@ long altzone; # endif #endif -/* Initialize *S to a value based on GMTOFF, ISDST, and ABBRIND. */ +/* Initialize *S to a value based on UTOFF, ISDST, and DESIGIDX. */ static void -init_ttinfo(struct ttinfo *s, int_fast32_t gmtoff, bool isdst, int abbrind) +init_ttinfo(struct ttinfo *s, int_fast32_t utoff, bool isdst, int desigidx) { - s->tt_gmtoff = gmtoff; + s->tt_utoff = utoff; s->tt_isdst = isdst; - s->tt_abbrind = abbrind; + s->tt_desigidx = desigidx; s->tt_ttisstd = false; - s->tt_ttisgmt = false; + s->tt_ttisut = false; } static int_fast32_t @@ -270,15 +270,15 @@ static void update_tzname_etc(struct state const *sp, struct ttinfo const *ttisp) { #if HAVE_TZNAME - tzname[ttisp->tt_isdst] = (char *) &sp->chars[ttisp->tt_abbrind]; + tzname[ttisp->tt_isdst] = (char *) &sp->chars[ttisp->tt_desigidx]; #endif #if USG_COMPAT if (!ttisp->tt_isdst) - timezone = - ttisp->tt_gmtoff; + timezone = - ttisp->tt_utoff; #endif #ifdef ALTZONE if (ttisp->tt_isdst) - altzone = - ttisp->tt_gmtoff; + altzone = - ttisp->tt_utoff; #endif } @@ -335,7 +335,7 @@ scrub_abbrs(struct state *sp) */ for (i = 0; i < sp->typecnt; ++i) { register const struct ttinfo * const ttisp = &sp->ttis[i]; - register char * cp = &sp->chars[ttisp->tt_abbrind]; + char *cp = &sp->chars[ttisp->tt_desigidx]; if (strlen(cp) > TZ_ABBR_MAX_LEN && strcmp(cp, GRANDPARENTED) != 0) @@ -452,7 +452,7 @@ tzloadbody(char const *name, struct state *sp, bool doextend, return errno; for (stored = 4; stored <= 8; stored *= 2) { int_fast32_t ttisstdcnt = detzcode(up->tzhead.tzh_ttisstdcnt); - int_fast32_t ttisgmtcnt = detzcode(up->tzhead.tzh_ttisgmtcnt); + int_fast32_t ttisutcnt = detzcode(up->tzhead.tzh_ttisutcnt); int_fast64_t prevtr = 0; int_fast32_t prevcorr = 0; int_fast32_t leapcnt = detzcode(up->tzhead.tzh_leapcnt); @@ -468,7 +468,7 @@ tzloadbody(char const *name, struct state *sp, bool doextend, && 0 <= timecnt && timecnt < TZ_MAX_TIMES && 0 <= charcnt && charcnt < TZ_MAX_CHARS && (ttisstdcnt == typecnt || ttisstdcnt == 0) - && (ttisgmtcnt == typecnt || ttisgmtcnt == 0))) + && (ttisutcnt == typecnt || ttisutcnt == 0))) return EINVAL; if (nread < (tzheadsize /* struct tzhead */ @@ -478,7 +478,7 @@ tzloadbody(char const *name, struct state *sp, bool doextend, + charcnt /* chars */ + leapcnt * (stored + 4) /* lsinfos */ + ttisstdcnt /* ttisstds */ - + ttisgmtcnt)) /* ttisgmts */ + + ttisutcnt)) /* ttisuts */ return EINVAL; sp->leapcnt = leapcnt; sp->timecnt = timecnt; @@ -519,19 +519,19 @@ tzloadbody(char const *name, struct state *sp, bool doextend, sp->timecnt = timecnt; for (i = 0; i < sp->typecnt; ++i) { register struct ttinfo * ttisp; - unsigned char isdst, abbrind; + unsigned char isdst, desigidx; ttisp = &sp->ttis[i]; - ttisp->tt_gmtoff = detzcode(p); + ttisp->tt_utoff = detzcode(p); p += 4; isdst = *p++; if (! (isdst < 2)) return EINVAL; ttisp->tt_isdst = isdst; - abbrind = *p++; - if (! (abbrind < sp->charcnt)) + desigidx = *p++; + if (! (desigidx < sp->charcnt)) return EINVAL; - ttisp->tt_abbrind = abbrind; + ttisp->tt_desigidx = desigidx; } for (i = 0; i < sp->charcnt; ++i) sp->chars[i] = *p++; @@ -578,12 +578,12 @@ tzloadbody(char const *name, struct state *sp, bool doextend, register struct ttinfo * ttisp; ttisp = &sp->ttis[i]; - if (ttisgmtcnt == 0) - ttisp->tt_ttisgmt = false; + if (ttisutcnt == 0) + ttisp->tt_ttisut = false; else { if (*p != true && *p != false) return EINVAL; - ttisp->tt_ttisgmt = *p++; + ttisp->tt_ttisut = *p++; } } /* @@ -612,11 +612,11 @@ tzloadbody(char const *name, struct state *sp, bool doextend, int gotabbr = 0; int charcnt = sp->charcnt; for (i = 0; i < ts->typecnt; i++) { - char *tsabbr = ts->chars + ts->ttis[i].tt_abbrind; + char *tsabbr = ts->chars + ts->ttis[i].tt_desigidx; int j; for (j = 0; j < charcnt; j++) if (strcmp(sp->chars + j, tsabbr) == 0) { - ts->ttis[i].tt_abbrind = j; + ts->ttis[i].tt_desigidx = j; gotabbr++; break; } @@ -625,7 +625,7 @@ tzloadbody(char const *name, struct state *sp, bool doextend, if (j + tsabbrlen < TZ_MAX_CHARS) { strcpy(sp->chars + j, tsabbr); charcnt = j + tsabbrlen + 1; - ts->ttis[i].tt_abbrind = j; + ts->ttis[i].tt_desigidx = j; gotabbr++; } } @@ -764,12 +764,13 @@ typesequiv(const struct state *sp, int a, int b) else { register const struct ttinfo * ap = &sp->ttis[a]; register const struct ttinfo * bp = &sp->ttis[b]; - result = ap->tt_gmtoff == bp->tt_gmtoff && - ap->tt_isdst == bp->tt_isdst && - ap->tt_ttisstd == bp->tt_ttisstd && - ap->tt_ttisgmt == bp->tt_ttisgmt && - strcmp(&sp->chars[ap->tt_abbrind], - &sp->chars[bp->tt_abbrind]) == 0; + result = (ap->tt_utoff == bp->tt_utoff + && ap->tt_isdst == bp->tt_isdst + && ap->tt_ttisstd == bp->tt_ttisstd + && ap->tt_ttisut == bp->tt_ttisut + && (strcmp(&sp->chars[ap->tt_desigidx], + &sp->chars[bp->tt_desigidx]) + == 0)); } return result; } @@ -1234,7 +1235,7 @@ tzparse(const char *name, struct state *sp, bool lastditch) j = sp->types[i]; if (!sp->ttis[j].tt_isdst) { theirstdoffset = - -sp->ttis[j].tt_gmtoff; + - sp->ttis[j].tt_utoff; break; } } @@ -1243,7 +1244,7 @@ tzparse(const char *name, struct state *sp, bool lastditch) j = sp->types[i]; if (sp->ttis[j].tt_isdst) { theirdstoffset = - -sp->ttis[j].tt_gmtoff; + - sp->ttis[j].tt_utoff; break; } } @@ -1259,7 +1260,7 @@ tzparse(const char *name, struct state *sp, bool lastditch) for (i = 0; i < sp->timecnt; ++i) { j = sp->types[i]; sp->types[i] = sp->ttis[j].tt_isdst; - if (sp->ttis[j].tt_ttisgmt) { + if (sp->ttis[j].tt_ttisut) { /* No adjustment to transition time */ } else { /* @@ -1285,7 +1286,7 @@ tzparse(const char *name, struct state *sp, bool lastditch) theirstdoffset; } } - theiroffset = -sp->ttis[j].tt_gmtoff; + theiroffset = -sp->ttis[j].tt_utoff; if (sp->ttis[j].tt_isdst) theirdstoffset = theiroffset; else theirstdoffset = theiroffset; @@ -1532,14 +1533,14 @@ localsub(struct state const *sp, time_t const *timep, int_fast32_t setname, /* ** To get (wrong) behavior that's compatible with System V Release 2.0 ** you'd replace the statement below with - ** t += ttisp->tt_gmtoff; + ** t += ttisp->tt_utoff; ** timesub(&t, 0L, sp, tmp); */ - result = timesub(&t, ttisp->tt_gmtoff, sp, tmp); + result = timesub(&t, ttisp->tt_utoff, sp, tmp); if (result) { result->tm_isdst = ttisp->tt_isdst; #ifdef TM_ZONE - result->TM_ZONE = (char *) &sp->chars[ttisp->tt_abbrind]; + result->TM_ZONE = (char *) &sp->chars[ttisp->tt_desigidx]; #endif /* defined TM_ZONE */ if (setname) update_tzname_etc(sp, ttisp); @@ -2059,8 +2060,8 @@ time2sub(struct tm *const tmp, for (j = sp->typecnt - 1; j >= 0; --j) { if (sp->ttis[j].tt_isdst == yourtm.tm_isdst) continue; - newt = t + sp->ttis[j].tt_gmtoff - - sp->ttis[i].tt_gmtoff; + newt = (t + sp->ttis[j].tt_utoff + - sp->ttis[i].tt_utoff); if (! funcp(sp, &newt, offset, &mytm)) continue; if (tmcomp(&mytm, &yourtm) != 0) @@ -2163,14 +2164,14 @@ time1(struct tm *const tmp, otheri = types[otherind]; if (sp->ttis[otheri].tt_isdst == tmp->tm_isdst) continue; - tmp->tm_sec += sp->ttis[otheri].tt_gmtoff - - sp->ttis[samei].tt_gmtoff; + tmp->tm_sec += (sp->ttis[otheri].tt_utoff + - sp->ttis[samei].tt_utoff); tmp->tm_isdst = !tmp->tm_isdst; t = time2(tmp, funcp, sp, offset, &okay); if (okay) return t; - tmp->tm_sec -= sp->ttis[otheri].tt_gmtoff - - sp->ttis[samei].tt_gmtoff; + tmp->tm_sec -= (sp->ttis[otheri].tt_utoff + - sp->ttis[samei].tt_utoff); tmp->tm_isdst = !tmp->tm_isdst; } } diff --git a/northamerica b/northamerica index 05aea96..fcbf4f2 100644 --- a/northamerica +++ b/northamerica @@ -196,7 +196,7 @@ Rule US 2007 max - Nov Sun>=1 2:00 0 S # increase the chances that they'll actually get compiled and to # avoid the need to duplicate the US rules in another file. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone EST -5:00 - EST Zone MST -7:00 - MST Zone HST -10:00 - HST @@ -353,7 +353,7 @@ Rule NYC 1920 only - Oct lastSun 2:00 0 S Rule NYC 1921 1966 - Apr lastSun 2:00 1:00 D Rule NYC 1921 1954 - Sep lastSun 2:00 0 S Rule NYC 1955 1966 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/New_York -4:56:02 - LMT 1883 Nov 18 12:03:58 -5:00 US E%sT 1920 -5:00 NYC E%sT 1942 @@ -413,7 +413,7 @@ Rule Chicago 1921 only - Mar lastSun 2:00 1:00 D Rule Chicago 1922 1966 - Apr lastSun 2:00 1:00 D Rule Chicago 1922 1954 - Sep lastSun 2:00 0 S Rule Chicago 1955 1966 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:09:24 -6:00 US C%sT 1920 -6:00 Chicago C%sT 1936 Mar 1 2:00 @@ -481,7 +481,7 @@ Rule Denver 1920 only - Oct lastSun 2:00 0 S Rule Denver 1921 only - May 22 2:00 0 S Rule Denver 1965 1966 - Apr lastSun 2:00 1:00 D Rule Denver 1965 1966 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Denver -6:59:56 - LMT 1883 Nov 18 12:00:04 -7:00 US M%sT 1920 -7:00 Denver M%sT 1942 @@ -534,7 +534,7 @@ Rule CA 1949 only - Jan 1 2:00 0 S Rule CA 1950 1966 - Apr lastSun 1:00 1:00 D Rule CA 1950 1961 - Sep lastSun 2:00 0 S Rule CA 1962 1966 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02 -8:00 US P%sT 1946 -8:00 CA P%sT 1967 @@ -642,7 +642,7 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02 # So they won't be waiting for Alaska to join them on 2019-03-10, but will # rather change their clocks twice in seven weeks. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Juneau 15:02:19 - LMT 1867 Oct 19 15:33:32 -8:57:41 - LMT 1900 Aug 20 12:00 -8:00 - PST 1942 @@ -762,7 +762,7 @@ Zone America/Adak 12:13:22 - LMT 1867 Oct 19 12:44:35 # Note that 1933-05-21 was a Sunday. # We're left to guess the time of day when Act 163 was approved; guess noon. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 -10:30 - HST 1933 Apr 30 2:00 -10:30 1:00 HDT 1933 May 21 12:00 @@ -792,7 +792,7 @@ Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 # Shanks says the 1944 experiment came to an end on 1944-03-17. # Go with the Arizona State Library instead. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 11:31:42 -7:00 US M%sT 1944 Jan 1 0:01 -7:00 - MST 1944 Apr 1 0:01 @@ -818,7 +818,7 @@ Zone America/Phoenix -7:28:18 - LMT 1883 Nov 18 11:31:42 # quarter of Idaho county) and eastern Oregon (most of Malheur County) # switched four weeks late in 1974. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11 -8:00 US P%sT 1923 May 13 2:00 -7:00 US M%sT 1974 @@ -890,7 +890,7 @@ Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11 Rule Indianapolis 1941 only - Jun 22 2:00 1:00 D Rule Indianapolis 1941 1954 - Sep lastSun 2:00 0 S Rule Indianapolis 1946 1954 - Apr lastSun 2:00 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 12:15:22 -6:00 US C%sT 1920 -6:00 Indianapolis C%sT 1942 @@ -910,7 +910,7 @@ Rule Marengo 1951 only - Apr lastSun 2:00 1:00 D Rule Marengo 1951 only - Sep lastSun 2:00 0 S Rule Marengo 1954 1960 - Apr lastSun 2:00 1:00 D Rule Marengo 1954 1960 - Sep lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Marengo -5:45:23 - LMT 1883 Nov 18 12:14:37 -6:00 US C%sT 1951 -6:00 Marengo C%sT 1961 Apr 30 2:00 @@ -934,7 +934,7 @@ Rule Vincennes 1956 1963 - Apr lastSun 2:00 1:00 D Rule Vincennes 1960 only - Oct lastSun 2:00 0 S Rule Vincennes 1961 only - Sep lastSun 2:00 0 S Rule Vincennes 1962 1963 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Vincennes -5:50:07 - LMT 1883 Nov 18 12:09:53 -6:00 US C%sT 1946 -6:00 Vincennes C%sT 1964 Apr 26 2:00 @@ -955,7 +955,7 @@ Rule Perry 1956 1963 - Apr lastSun 2:00 1:00 D Rule Perry 1960 only - Oct lastSun 2:00 0 S Rule Perry 1961 only - Sep lastSun 2:00 0 S Rule Perry 1962 1963 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Tell_City -5:47:03 - LMT 1883 Nov 18 12:12:57 -6:00 US C%sT 1946 -6:00 Perry C%sT 1964 Apr 26 2:00 @@ -971,7 +971,7 @@ Rule Pike 1955 only - May 1 0:00 1:00 D Rule Pike 1955 1960 - Sep lastSun 2:00 0 S Rule Pike 1956 1964 - Apr lastSun 2:00 1:00 D Rule Pike 1961 1964 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Petersburg -5:49:07 - LMT 1883 Nov 18 12:10:53 -6:00 US C%sT 1955 -6:00 Pike C%sT 1965 Apr 25 2:00 @@ -993,7 +993,7 @@ Rule Starke 1947 1954 - Sep lastSun 2:00 0 S Rule Starke 1955 1956 - Oct lastSun 2:00 0 S Rule Starke 1957 1958 - Sep lastSun 2:00 0 S Rule Starke 1959 1961 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Knox -5:46:30 - LMT 1883 Nov 18 12:13:30 -6:00 US C%sT 1947 -6:00 Starke C%sT 1962 Apr 29 2:00 @@ -1009,7 +1009,7 @@ Rule Pulaski 1946 1960 - Apr lastSun 2:00 1:00 D Rule Pulaski 1946 1954 - Sep lastSun 2:00 0 S Rule Pulaski 1955 1956 - Oct lastSun 2:00 0 S Rule Pulaski 1957 1960 - Sep lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Winamac -5:46:25 - LMT 1883 Nov 18 12:13:35 -6:00 US C%sT 1946 -6:00 Pulaski C%sT 1961 Apr 30 2:00 @@ -1020,7 +1020,7 @@ Zone America/Indiana/Winamac -5:46:25 - LMT 1883 Nov 18 12:13:35 -5:00 US E%sT # # Switzerland County, Indiana, did not observe DST from 1973 through 2005. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Vevay -5:40:16 - LMT 1883 Nov 18 12:19:44 -6:00 US C%sT 1954 Apr 25 2:00 -5:00 - EST 1969 @@ -1045,7 +1045,7 @@ Rule Louisville 1941 only - Sep lastSun 2:00 0 S Rule Louisville 1946 only - Jun 2 2:00 0 S Rule Louisville 1950 1955 - Sep lastSun 2:00 0 S Rule Louisville 1956 1960 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Kentucky/Louisville -5:43:02 - LMT 1883 Nov 18 12:16:58 -6:00 US C%sT 1921 -6:00 Louisville C%sT 1942 @@ -1151,7 +1151,7 @@ Zone America/Kentucky/Monticello -5:39:24 - LMT 1883 Nov 18 12:20:36 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Detroit 1948 only - Apr lastSun 2:00 1:00 D Rule Detroit 1948 only - Sep lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Detroit -5:32:11 - LMT 1905 -6:00 - CST 1915 May 15 2:00 -5:00 - EST 1942 @@ -1168,7 +1168,7 @@ Rule Menominee 1946 only - Apr lastSun 2:00 1:00 D Rule Menominee 1946 only - Sep lastSun 2:00 0 S Rule Menominee 1966 only - Apr lastSun 2:00 1:00 D Rule Menominee 1966 only - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Menominee -5:50:27 - LMT 1885 Sep 18 12:00 -6:00 US C%sT 1946 -6:00 Menominee C%sT 1969 Apr 27 2:00 @@ -1402,7 +1402,7 @@ Rule StJohns 2007 2011 - Mar Sun>=8 0:01 1:00 D Rule StJohns 2007 2010 - Nov Sun>=1 0:01 0 S # # St John's has an apostrophe, but Posix file names can't have apostrophes. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/St_Johns -3:30:52 - LMT 1884 -3:30:52 StJohns N%sT 1918 -3:30:52 Canada N%sT 1919 @@ -1415,7 +1415,7 @@ Zone America/St_Johns -3:30:52 - LMT 1884 # most of east Labrador # The name 'Happy Valley-Goose Bay' is too long; use 'Goose Bay'. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Goose_Bay -4:01:40 - LMT 1884 # Happy Valley-Goose Bay -3:30:52 - NST 1918 -3:30:52 Canada N%sT 1919 @@ -1489,7 +1489,7 @@ Rule Halifax 1956 1959 - Apr lastSun 2:00 1:00 D Rule Halifax 1956 1959 - Sep lastSun 2:00 0 S Rule Halifax 1962 1973 - Apr lastSun 2:00 1:00 D Rule Halifax 1962 1973 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Halifax -4:14:24 - LMT 1902 Jun 15 -4:00 Halifax A%sT 1918 -4:00 Canada A%sT 1919 @@ -1527,7 +1527,7 @@ Rule Moncton 1946 1956 - Sep lastSun 2:00 0 S Rule Moncton 1957 1972 - Oct lastSun 2:00 0 S Rule Moncton 1993 2006 - Apr Sun>=1 0:01 1:00 D Rule Moncton 1993 2006 - Oct lastSun 0:01 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Moncton -4:19:08 - LMT 1883 Dec 9 -5:00 - EST 1902 Jun 15 -4:00 Canada A%sT 1933 @@ -1556,7 +1556,7 @@ Zone America/Moncton -4:19:08 - LMT 1883 Dec 9 # For lack of better info, guess this practice began around 1970, contra to # Shanks & Pottenger who have this region observing AST/ADT. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Blanc-Sablon -3:48:28 - LMT 1884 -4:00 Canada A%sT 1970 -4:00 - AST @@ -1760,7 +1760,7 @@ Rule Toronto 1957 1973 - Oct lastSun 2:00 0 S # War,... [t]he cities agreed to implement DST during the summer # months for the remainder of the war years. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Toronto -5:17:32 - LMT 1895 -5:00 Canada E%sT 1919 -5:00 Toronto E%sT 1942 Feb 9 2:00s @@ -1835,7 +1835,7 @@ Rule Winn 1963 only - Sep 22 2:00 0 S Rule Winn 1966 1986 - Apr lastSun 2:00s 1:00 D Rule Winn 1966 2005 - Oct lastSun 2:00s 0 S Rule Winn 1987 2005 - Apr Sun>=1 2:00s 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Winnipeg -6:28:36 - LMT 1887 Jul 16 -6:00 Winn C%sT 2006 -6:00 Canada C%sT @@ -1926,7 +1926,7 @@ Rule Swift 1957 only - Oct lastSun 2:00 0 S Rule Swift 1959 1961 - Apr lastSun 2:00 1:00 D Rule Swift 1959 only - Oct lastSun 2:00 0 S Rule Swift 1960 1961 - Sep lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Regina -6:58:36 - LMT 1905 Sep -7:00 Regina M%sT 1960 Apr lastSun 2:00 -6:00 - CST @@ -1957,7 +1957,7 @@ Rule Edm 1969 only - Apr lastSun 2:00 1:00 D Rule Edm 1969 only - Oct lastSun 2:00 0 S Rule Edm 1972 1986 - Apr lastSun 2:00 1:00 D Rule Edm 1972 2006 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Edmonton -7:33:52 - LMT 1906 Sep -7:00 Edm M%sT 1987 -7:00 Canada M%sT @@ -2050,7 +2050,7 @@ Rule Vanc 1946 1986 - Apr lastSun 2:00 1:00 D Rule Vanc 1946 only - Oct 13 2:00 0 S Rule Vanc 1947 1961 - Sep lastSun 2:00 0 S Rule Vanc 1962 2006 - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Vancouver -8:12:28 - LMT 1884 -8:00 Vanc P%sT 1987 -8:00 Canada P%sT @@ -2370,7 +2370,7 @@ Rule NT_YK 1965 only - Oct lastSun 2:00 0 S Rule NT_YK 1980 1986 - Apr lastSun 2:00 1:00 D Rule NT_YK 1980 2006 - Oct lastSun 2:00 0 S Rule NT_YK 1987 2006 - Apr Sun>=1 2:00 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # aka Panniqtuuq Zone America/Pangnirtung 0 - -00 1921 # trading post est. -4:00 NT_YK A%sT 1995 Apr Sun>=1 2:00 @@ -2644,7 +2644,7 @@ Rule Mexico 2001 only - May Sun>=1 2:00 1:00 D Rule Mexico 2001 only - Sep lastSun 2:00 0 S Rule Mexico 2002 max - Apr Sun>=1 2:00 1:00 D Rule Mexico 2002 max - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # Quintana Roo; represented by Cancún Zone America/Cancun -5:47:04 - LMT 1922 Jan 1 0:12:56 -6:00 - CST 1981 Dec 23 @@ -2837,7 +2837,7 @@ Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Bahamas 1964 1975 - Oct lastSun 2:00 0 S Rule Bahamas 1964 1975 - Apr lastSun 2:00 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Nassau -5:09:30 - LMT 1912 Mar 2 -5:00 Bahamas E%sT 1976 -5:00 US E%sT @@ -2852,7 +2852,7 @@ Rule Barb 1977 1978 - Oct Sun>=1 2:00 0 S Rule Barb 1978 1980 - Apr Sun>=15 2:00 1:00 D Rule Barb 1979 only - Sep 30 2:00 0 S Rule Barb 1980 only - Sep 25 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Barbados -3:58:29 - LMT 1924 # Bridgetown -3:58:29 - BMT 1932 # Bridgetown Mean Time -4:00 Barb A%sT @@ -2866,7 +2866,7 @@ Rule Belize 1973 only - Dec 5 0:00 1:00 CDT Rule Belize 1974 only - Feb 9 0:00 0 CST Rule Belize 1982 only - Dec 18 0:00 1:00 CDT Rule Belize 1983 only - Feb 12 0:00 0 CST -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Belize -5:52:48 - LMT 1912 Apr -6:00 Belize %s @@ -2883,7 +2883,7 @@ Zone America/Belize -5:52:48 - LMT 1912 Apr # Friday, the same thing will happen in Bermuda. # http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105… -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Atlantic/Bermuda -4:19:18 - LMT 1930 Jan 1 2:00 # Hamilton -4:00 - AST 1974 Apr 28 2:00 -4:00 Canada A%sT 1976 @@ -2905,7 +2905,7 @@ Rule CR 1991 1992 - Jan Sat>=15 0:00 1:00 D Rule CR 1991 only - Jul 1 0:00 0 S Rule CR 1992 only - Mar 15 0:00 0 S # There are too many San Josés elsewhere, so we'll use 'Costa Rica'. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Costa_Rica -5:36:13 - LMT 1890 # San José -5:36:13 - SJMT 1921 Jan 15 # San José Mean Time -6:00 CR C%sT @@ -3111,7 +3111,7 @@ Rule Cuba 2012 only - Apr 1 0:00s 1:00 D Rule Cuba 2012 max - Nov Sun>=1 0:00s 0 S Rule Cuba 2013 max - Mar Sun>=8 0:00s 1:00 D -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Havana -5:29:28 - LMT 1890 -5:29:36 - HMT 1925 Jul 19 12:00 # Havana MT -5:00 Cuba C%sT @@ -3146,7 +3146,7 @@ Rule DR 1969 1973 - Oct lastSun 0:00 0:30 -0430 Rule DR 1970 only - Feb 21 0:00 0 EST Rule DR 1971 only - Jan 20 0:00 0 EST Rule DR 1972 1974 - Jan 21 0:00 0 EST -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Santo_Domingo -4:39:36 - LMT 1890 -4:40 - SDMT 1933 Apr 1 12:00 # S. Dom. MT -5:00 DR %s 1974 Oct 27 @@ -3161,7 +3161,7 @@ Rule Salv 1987 1988 - May Sun>=1 0:00 1:00 D Rule Salv 1987 1988 - Sep lastSun 0:00 0 S # There are too many San Salvadors elsewhere, so use America/El_Salvador # instead of America/San_Salvador. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/El_Salvador -5:56:48 - LMT 1921 # San Salvador -6:00 Salv C%sT @@ -3194,7 +3194,7 @@ Rule Guat 1991 only - Mar 23 0:00 1:00 D Rule Guat 1991 only - Sep 7 0:00 0 S Rule Guat 2006 only - Apr 30 0:00 1:00 D Rule Guat 2006 only - Oct 1 0:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Guatemala -6:02:04 - LMT 1918 Oct 5 -6:00 Guat C%sT @@ -3280,7 +3280,7 @@ Rule Haiti 2012 2015 - Mar Sun>=8 2:00 1:00 D Rule Haiti 2012 2015 - Nov Sun>=1 2:00 0 S Rule Haiti 2017 max - Mar Sun>=8 2:00 1:00 D Rule Haiti 2017 max - Nov Sun>=1 2:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Port-au-Prince -4:49:20 - LMT 1890 -4:49 - PPMT 1917 Jan 24 12:00 # P-a-P MT -5:00 Haiti E%sT @@ -3319,7 +3319,7 @@ Rule Hond 1987 1988 - May Sun>=1 0:00 1:00 D Rule Hond 1987 1988 - Sep lastSun 0:00 0 S Rule Hond 2006 only - May Sun>=1 0:00 1:00 D Rule Hond 2006 only - Aug Mon>=1 0:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr -6:00 Hond C%sT # @@ -3340,7 +3340,7 @@ Zone America/Tegucigalpa -5:48:52 - LMT 1921 Apr # Neita L. The politician in all of us. Jamaica Observer 2014-09-20 # http://www.jamaicaobserver.com/columns/The-politician-in-all-of-us_17573647 # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Jamaica -5:07:10 - LMT 1890 # Kingston -5:07:10 - KMT 1912 Feb # Kingston Mean Time -5:00 - EST 1974 @@ -3348,7 +3348,7 @@ Zone America/Jamaica -5:07:10 - LMT 1890 # Kingston -5:00 - EST # Martinique -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France -4:04:20 - FFMT 1911 May # Fort-de-France MT -4:00 - AST 1980 Apr 6 @@ -3412,7 +3412,7 @@ Rule Nic 2005 only - Apr 10 0:00 1:00 D Rule Nic 2005 only - Oct Sun>=1 0:00 0 S Rule Nic 2006 only - Apr 30 2:00 1:00 D Rule Nic 2006 only - Oct Sun>=1 1:00 0 S -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Managua -5:45:08 - LMT 1890 -5:45:12 - MMT 1934 Jun 23 # Managua Mean Time? -6:00 - CST 1973 May @@ -3424,7 +3424,7 @@ Zone America/Managua -5:45:08 - LMT 1890 -6:00 Nic C%sT # Panama -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Panama -5:18:08 - LMT 1890 -5:19:36 - CMT 1908 Apr 22 # Colón Mean Time -5:00 - EST @@ -3432,7 +3432,7 @@ Link America/Panama America/Cayman # Puerto Rico # There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan -4:00 - AST 1942 May 3 -4:00 US A%sT 1946 @@ -3444,7 +3444,7 @@ Zone America/Puerto_Rico -4:24:25 - LMT 1899 Mar 28 12:00 # San Juan # St Pierre and Miquelon # There are too many St Pierres elsewhere, so we'll use 'Miquelon'. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre -4:00 - AST 1980 May -3:00 - -03 1987 @@ -3490,7 +3490,7 @@ Zone America/Miquelon -3:44:40 - LMT 1911 May 15 # St Pierre # by March 2018 for TCI. Magnetic Media. 2017-08-25. # http://magneticmediatv.com/2017/08/time-change-back-by-march-2018-for-tci/ # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Grand_Turk -4:44:32 - LMT 1890 -5:07:10 - KMT 1912 Feb # Kingston Mean Time -5:00 - EST 1979 diff --git a/pacificnew b/pacificnew index 0e6cf07..3a20303 100644 --- a/pacificnew +++ b/pacificnew @@ -21,7 +21,7 @@ ## Rule Twilite XXXX max uspres Nov Sun>=7 2:00 0 S ## Rule Twilite XXXX max nonpres Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] +# Zone NAME UTOFF RULES/SAVE FORMAT [UNTIL] ## Zone America/Los_Angeles-PET -8:00 US P%sT XXXX ## -8:00 Twilite P%sT diff --git a/southamerica b/southamerica index b4bb3fa..a7c4a71 100644 --- a/southamerica +++ b/southamerica @@ -396,7 +396,7 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 - # plus is that this silences a zic complaint that there's no POSIX TZ # setting for timestamps past 2038. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # # Buenos Aires (BA), Capital Federal (CF), Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 @@ -577,7 +577,7 @@ Zone America/Argentina/Ushuaia -4:33:12 - LMT 1894 Oct 31 Link America/Curacao America/Aruba # Bolivia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/La_Paz -4:32:36 - LMT 1890 -4:32:36 - CMT 1931 Oct 15 # Calamarca MT -4:32:36 1:00 BST 1932 Mar 21 # Bolivia ST @@ -948,7 +948,7 @@ Rule Brazil 2018 only - Nov Sun>=1 0:00 1:00 - # From Daniel Soares de Oliveira (2019-04-26): # http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] # # Fernando de Noronha (administratively part of PE) Zone America/Noronha -2:09:40 - LMT 1914 @@ -1298,7 +1298,7 @@ Rule Chile 2019 max - Apr Sun>=2 3:00u 0 - Rule Chile 2019 max - Sep Sun>=2 4:00u 1:00 - # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Santiago -4:42:46 - LMT 1890 -4:42:46 - SMT 1910 Jan 10 # Santiago Mean Time -5:00 - -05 1916 Jul 1 @@ -1347,7 +1347,7 @@ Zone Pacific/Easter -7:17:28 - LMT 1890 # Palmer has followed Chile. Prior to that, before the Falklands War, # Palmer used to be supplied from Argentina. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Antarctica/Palmer 0 - -00 1965 -4:00 Arg -04/-03 1969 Oct 5 -3:00 Arg -03/-02 1982 May @@ -1362,7 +1362,7 @@ Zone Antarctica/Palmer 0 - -00 1965 # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule CO 1992 only - May 3 0:00 1:00 - Rule CO 1993 only - Apr 4 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 -4:56:16 - BMT 1914 Nov 23 # Bogotá Mean Time -5:00 CO -05/-04 @@ -1387,7 +1387,7 @@ Zone America/Bogota -4:56:16 - LMT 1884 Mar 13 # Netherlands as Kingdom Islands. This won't affect their time zones # though, as far as we know. # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Curacao -4:35:47 - LMT 1912 Feb 12 # Willemstad -4:30 - -0430 1965 -4:00 - AST @@ -1423,7 +1423,7 @@ Link America/Curacao America/Kralendijk # Caribbean Netherlands Rule Ecuador 1992 only - Nov 28 0:00 1:00 - Rule Ecuador 1993 only - Feb 5 0:00 0 - # -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Guayaquil -5:19:20 - LMT 1890 -5:14:00 - QMT 1931 # Quito Mean Time -5:00 Ecuador -05/-04 @@ -1526,7 +1526,7 @@ Rule Falk 1985 2000 - Sep Sun>=9 0:00 1:00 - Rule Falk 1986 2000 - Apr Sun>=16 0:00 0 - Rule Falk 2001 2010 - Apr Sun>=15 2:00 0 - Rule Falk 2001 2010 - Sep Sun>=1 2:00 1:00 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:51:24 - SMT 1912 Mar 12 # Stanley Mean Time -4:00 Falk -04/-03 1983 May @@ -1535,13 +1535,13 @@ Zone Atlantic/Stanley -3:51:24 - LMT 1890 -3:00 - -03 # French Guiana -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Cayenne -3:29:20 - LMT 1911 Jul -4:00 - -04 1967 Oct -3:00 - -03 # Guyana -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Guyana -3:52:40 - LMT 1915 Mar # Georgetown -3:45 - -0345 1975 Jul 31 -3:00 - -03 1991 @@ -1635,7 +1635,7 @@ Rule Para 2010 2012 - Apr Sun>=8 0:00 0 - # http://www.presidencia.gov.py/archivos/documentos/DECRETO1264_ey9r8zai.pdf Rule Para 2013 max - Mar Sun>=22 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Asuncion -3:50:40 - LMT 1890 -3:50:40 - AMT 1931 Oct 10 # Asunción Mean Time -4:00 - -04 1972 Oct @@ -1664,13 +1664,13 @@ Rule Peru 1990 only - Apr 1 0:00 0 - # IATA is ambiguous for 1993/1995; go with Shanks & Pottenger. Rule Peru 1994 only - Jan 1 0:00 1:00 - Rule Peru 1994 only - Apr 1 0:00 0 - -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Lima -5:08:12 - LMT 1890 -5:08:36 - LMT 1908 Jul 28 # Lima Mean Time? -5:00 Peru -05/-04 # South Georgia -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken -2:00 - -02 @@ -1678,7 +1678,7 @@ Zone Atlantic/South_Georgia -2:26:08 - LMT 1890 # Grytviken # uninhabited; scientific personnel have wintered # Suriname -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Paramaribo -3:40:40 - LMT 1911 -3:40:52 - PMT 1935 # Paramaribo Mean Time -3:40:36 - PMT 1945 Oct # The capital moved? @@ -1686,7 +1686,7 @@ Zone America/Paramaribo -3:40:40 - LMT 1911 -3:00 - -03 # Trinidad and Tobago -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Port_of_Spain -4:06:04 - LMT 1912 Mar 2 -4:00 - AST @@ -1957,7 +1957,7 @@ Zone America/Montevideo -3:44:51 - LMT 1908 Jun 10 # ... published in the official Gazette [2016-04-18], here: # http://historico.tsj.gob.ve/gaceta_ext/abril/1842016/E-1842016-4551.pdf -# Zone NAME GMTOFF RULES FORMAT [UNTIL] +# Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Caracas -4:27:44 - LMT 1890 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? -4:30 - -0430 1965 Jan 1 0:00 diff --git a/systemv b/systemv index 24c8f64..20c435d 100644 --- a/systemv +++ b/systemv @@ -23,7 +23,7 @@ Rule SystemV 1975 only - Oct lastSun 2:00 0 S Rule SystemV 1976 max - Apr lastSun 2:00 1:00 D Rule SystemV 1976 max - Oct lastSun 2:00 0 S -# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] +# Zone NAME UTOFF RULES/SAVE FORMAT [UNTIL] ## Zone SystemV/AST4ADT -4:00 SystemV A%sT ## Zone SystemV/EST5EDT -5:00 SystemV E%sT ## Zone SystemV/CST6CDT -6:00 SystemV C%sT diff --git a/tz-how-to.html b/tz-how-to.html index 0bb66ad..ab8ae34 100644 --- a/tz-how-to.html +++ b/tz-how-to.html @@ -314,7 +314,7 @@ rule, so there should be no change.</li> <tr> <td colspan="6" align="center"><table><tr><td> <pre> -#Zone NAME GMTOFF RULES FORMAT [UNTIL] +#Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Chicago -5:50:36 - LMT 1883 Nov 18 12:09:24 -6:00 US C%sT 1920 -6:00 Chicago C%sT 1936 Mar 1 2:00 @@ -419,7 +419,7 @@ differing by 24 hours; this corresponds to a movement of the Date Line. For example:</p> <pre> -#Zone NAME GMTOFF RULES FORMAT [UNTIL] +#Zone NAME UTOFF RULES FORMAT [UNTIL] Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 -8:57:41 - LMT ... </pre> @@ -458,7 +458,7 @@ given alphabetic string.</li> <p>An example of a specific amount of time is:</p> <pre> -#Zone NAME GMTOFF RULES FORMAT [UNTIL] +#Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Honolulu ... 1933 Apr 30 2:00 -10:30 1:00 HDT 1933 May 21 12:00 ... @@ -466,7 +466,7 @@ Zone Pacific/Honolulu ... 1933 Apr 30 2:00 <p>Hawaii tried daylight saving time for three weeks in 1933 and decided they didn’t like it. <code>8-) </code>Note that -the <code>GMTOFF</code> column always contains the standard time +the <code>UTOFF</code> column always contains the standard time offset, so the wall clock time during this period was GMT − 10:30 + 1:00 = GMT − 9:30.</p> @@ -492,7 +492,7 @@ appropriate Rule’s <code>LETTER</code> column</li> <p>An example of a slash is:</p> <pre> -#Zone NAME GMTOFF RULES FORMAT [UNTIL] +#Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Europe/London ... 1996 0:00 EU GMT/BST </pre> @@ -569,7 +569,7 @@ Rule US 1945 only - Sep lastSun 2:00 0 S <tr> <td colspan="6" align="center"><table><tr><td> <pre> -#Zone NAME GMTOFF RULES FORMAT [UNTIL] +#Zone NAME UTOFF RULES FORMAT [UNTIL] Zone Pacific/Honolulu -10:31:26 - LMT 1896 Jan 13 12:00 -10:30 - HST 1933 Apr 30 2:00 -10:30 1:00 HDT 1933 May 21 2:00 diff --git a/tzfile.5 b/tzfile.5 index 2f70915..b591e56 100644 --- a/tzfile.5 +++ b/tzfile.5 @@ -37,7 +37,7 @@ These values are, in order: .RS .TP -.I tzh_ttisgmtcnt +.I tzh_ttisutcnt The number of UT/local indicators stored in the file. .TP .I tzh_ttisstdcnt @@ -87,21 +87,21 @@ entries, each defined as follows: .nf .ta .5i +\w'unsigned char\0\0'u struct ttinfo { - int32_t tt_gmtoff; + int32_t tt_utoff; unsigned char tt_isdst; - unsigned char tt_abbrind; + unsigned char tt_desigidx; }; .in -.5i .fi .sp Each structure is written as a four-byte signed integer value for -.IR tt_gmtoff , +.IR tt_utoff , in a standard byte order, followed by a one-byte value for .I tt_isdst and a one-byte value for -.IR tt_abbrind . +.IR tt_desigidx . In each structure, -.I tt_gmtoff +.I tt_utoff gives the number of seconds to be added to UT, .I tt_isdst tells whether @@ -109,7 +109,7 @@ tells whether should be set by .BR localtime (3) and -.I tt_abbrind +.I tt_desigidx serves as an index into the array of time zone abbreviation bytes that follow the .I ttinfo @@ -136,7 +136,7 @@ were specified as standard time or wall clock time, and are used when a timezone file is used in handling POSIX-style timezone environment variables. .IP * -.I tzh_ttisgmtcnt +.I tzh_ttisutcnt UT/local indicators, each stored as a one-byte value; they tell whether the transition times associated with local time types were specified as UT or local time, diff --git a/tzfile.h b/tzfile.h index 446c8d5..52673d6 100644 --- a/tzfile.h +++ b/tzfile.h @@ -46,7 +46,7 @@ struct tzhead { char tzh_magic[4]; /* TZ_MAGIC */ char tzh_version[1]; /* '\0' or '2' or '3' as of 2013 */ char tzh_reserved[15]; /* reserved; must be zero */ - char tzh_ttisgmtcnt[4]; /* coded number of trans. time flags */ + char tzh_ttisutcnt[4]; /* coded number of trans. time flags */ char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */ char tzh_leapcnt[4]; /* coded number of leap seconds */ char tzh_timecnt[4]; /* coded number of transition times */ @@ -72,7 +72,7 @@ struct tzhead { ** transition time is wall clock time ** if absent, transition times are ** assumed to be wall clock time -** tzh_ttisgmtcnt (char)s indexed by type; if 1, transition +** tzh_ttisutcnt (char)s indexed by type; if 1, transition ** time is UT, if 0, ** transition time is local time ** if absent, transition times are diff --git a/zic.c b/zic.c index 03f33ee..29cd684 100644 --- a/zic.c +++ b/zic.c @@ -94,7 +94,7 @@ struct rule { zic_t r_tod; /* time from midnight */ bool r_todisstd; /* above is standard time if 1 */ /* or wall clock time if 0 */ - bool r_todisgmt; /* above is GMT if 1 */ + bool r_todisut; /* above is GMT if 1 */ /* or local time if 0 */ bool r_isdst; /* is this daylight saving time? */ zic_t r_stdoff; /* offset from default time (which is @@ -118,7 +118,7 @@ struct zone { lineno z_linenum; const char * z_name; - zic_t z_gmtoff; + zic_t z_utoff; char * z_rule; const char * z_format; char z_format_specifier; @@ -233,7 +233,7 @@ static int typecnt; */ #define ZF_NAME 1 -#define ZF_GMTOFF 2 +#define ZF_UTOFF 2 #define ZF_RULE 3 #define ZF_FORMAT 4 #define ZF_TILYEAR 5 @@ -247,7 +247,7 @@ static int typecnt; ** Which fields are which on a Zone continuation line. */ -#define ZFC_GMTOFF 0 +#define ZFC_UTOFF 0 #define ZFC_RULE 1 #define ZFC_FORMAT 2 #define ZFC_TILYEAR 3 @@ -409,11 +409,11 @@ static struct attype { bool dontmerge; unsigned char type; } * attypes; -static zic_t gmtoffs[TZ_MAX_TYPES]; +static zic_t utoffs[TZ_MAX_TYPES]; static char isdsts[TZ_MAX_TYPES]; -static unsigned char abbrinds[TZ_MAX_TYPES]; +static unsigned char desigidx[TZ_MAX_TYPES]; static bool ttisstds[TZ_MAX_TYPES]; -static bool ttisgmts[TZ_MAX_TYPES]; +static bool ttisuts[TZ_MAX_TYPES]; static char chars[TZ_MAX_CHARS]; static zic_t trans[TZ_MAX_LEAPS]; static zic_t corr[TZ_MAX_LEAPS]; @@ -1403,13 +1403,13 @@ inzsub(char **fields, int nfields, bool iscont) register char * cp; char * cp1; static struct zone z; - register int i_gmtoff, i_rule, i_format; + register int i_utoff, i_rule, i_format; register int i_untilyear, i_untilmonth; register int i_untilday, i_untiltime; register bool hasuntil; if (iscont) { - i_gmtoff = ZFC_GMTOFF; + i_utoff = ZFC_UTOFF; i_rule = ZFC_RULE; i_format = ZFC_FORMAT; i_untilyear = ZFC_TILYEAR; @@ -1420,7 +1420,7 @@ inzsub(char **fields, int nfields, bool iscont) } else if (!namecheck(fields[ZF_NAME])) return false; else { - i_gmtoff = ZF_GMTOFF; + i_utoff = ZF_UTOFF; i_rule = ZF_RULE; i_format = ZF_FORMAT; i_untilyear = ZF_TILYEAR; @@ -1431,7 +1431,7 @@ inzsub(char **fields, int nfields, bool iscont) } z.z_filename = filename; z.z_linenum = linenum; - z.z_gmtoff = gethms(fields[i_gmtoff], _("invalid UT offset")); + z.z_utoff = gethms(fields[i_utoff], _("invalid UT offset")); if ((cp = strchr(fields[i_format], '%')) != 0) { if ((*++cp != 's' && *cp != 'z') || strchr(cp, '%') || strchr(fields[i_format], '/')) { @@ -1624,26 +1624,26 @@ rulesub(struct rule *rp, const char *loyearp, const char *hiyearp, } rp->r_month = lp->l_value; rp->r_todisstd = false; - rp->r_todisgmt = false; + rp->r_todisut = false; dp = ecpyalloc(timep); if (*dp != '\0') { ep = dp + strlen(dp) - 1; switch (lowerit(*ep)) { case 's': /* Standard */ rp->r_todisstd = true; - rp->r_todisgmt = false; + rp->r_todisut = false; *ep = '\0'; break; case 'w': /* Wall */ rp->r_todisstd = false; - rp->r_todisgmt = false; + rp->r_todisut = false; *ep = '\0'; break; case 'g': /* Greenwich */ case 'u': /* Universal */ case 'z': /* Zulu */ rp->r_todisstd = true; - rp->r_todisgmt = true; + rp->r_todisut = true; *ep = '\0'; break; } @@ -1876,22 +1876,24 @@ writezone(const char *const name, const char *const string, char version, toi = 0; fromi = 0; for ( ; fromi < timecnt; ++fromi) { - if (toi != 0 && ((attypes[fromi].at + - gmtoffs[attypes[toi - 1].type]) <= - (attypes[toi - 1].at + gmtoffs[toi == 1 ? 0 - : attypes[toi - 2].type]))) { + if (toi != 0 + && ((attypes[fromi].at + + utoffs[attypes[toi - 1].type]) + <= (attypes[toi - 1].at + + utoffs[toi == 1 ? 0 + : attypes[toi - 2].type]))) { attypes[toi - 1].type = attypes[fromi].type; continue; } if (toi == 0 || attypes[fromi].dontmerge - || (gmtoffs[attypes[toi - 1].type] - != gmtoffs[attypes[fromi].type]) + || (utoffs[attypes[toi - 1].type] + != utoffs[attypes[fromi].type]) || (isdsts[attypes[toi - 1].type] != isdsts[attypes[fromi].type]) - || (abbrinds[attypes[toi - 1].type] - != abbrinds[attypes[fromi].type])) + || (desigidx[attypes[toi - 1].type] + != desigidx[attypes[fromi].type])) attypes[toi++] = attypes[fromi]; } timecnt = toi; @@ -2084,24 +2086,24 @@ writezone(const char *const name, const char *const string, char version, } } if (hidst >= 0 && mrudst >= 0 && hidst != mrudst && - gmtoffs[hidst] != gmtoffs[mrudst]) { + utoffs[hidst] != utoffs[mrudst]) { isdsts[mrudst] = -1; - type = addtype(gmtoffs[mrudst], - &chars[abbrinds[mrudst]], + type = addtype(utoffs[mrudst], + &chars[desigidx[mrudst]], true, ttisstds[mrudst], - ttisgmts[mrudst]); + ttisuts[mrudst]); isdsts[mrudst] = 1; omittype[type] = false; } if (histd >= 0 && mrustd >= 0 && histd != mrustd && - gmtoffs[histd] != gmtoffs[mrustd]) { + utoffs[histd] != utoffs[mrustd]) { isdsts[mrustd] = -1; - type = addtype(gmtoffs[mrustd], - &chars[abbrinds[mrustd]], + type = addtype(utoffs[mrustd], + &chars[desigidx[mrustd]], false, ttisstds[mrustd], - ttisgmts[mrustd]); + ttisuts[mrustd]); isdsts[mrustd] = 0; omittype[type] = false; } @@ -2124,11 +2126,11 @@ writezone(const char *const name, const char *const string, char version, continue; if (ttisstds[i]) stdcnt = thistypecnt; - if (ttisgmts[i]) + if (ttisuts[i]) utcnt = thistypecnt; - if (indmap[abbrinds[i]] >= 0) + if (indmap[desigidx[i]] >= 0) continue; - thisabbr = &chars[abbrinds[i]]; + thisabbr = &chars[desigidx[i]]; for (j = 0; j < thischarcnt; ++j) if (strcmp(&thischars[j], thisabbr) == 0) break; @@ -2136,7 +2138,7 @@ writezone(const char *const name, const char *const string, char version, strcpy(&thischars[thischarcnt], thisabbr); thischarcnt += strlen(thisabbr) + 1; } - indmap[abbrinds[i]] = j; + indmap[desigidx[i]] = j; } if (pass == 1 && !want_bloat()) { utcnt = stdcnt = thisleapcnt = 0; @@ -2148,7 +2150,7 @@ writezone(const char *const name, const char *const string, char version, tzh = tzh0; memcpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic); tzh.tzh_version[0] = version; - convert(utcnt, tzh.tzh_ttisgmtcnt); + convert(utcnt, tzh.tzh_ttisutcnt); convert(stdcnt, tzh.tzh_ttisstdcnt); convert(thisleapcnt, tzh.tzh_leapcnt); convert(locut + thistimecnt + hicut, tzh.tzh_timecnt); @@ -2157,7 +2159,7 @@ writezone(const char *const name, const char *const string, char version, DO(tzh_magic); DO(tzh_version); DO(tzh_reserved); - DO(tzh_ttisgmtcnt); + DO(tzh_ttisutcnt); DO(tzh_ttisstdcnt); DO(tzh_leapcnt); DO(tzh_timecnt); @@ -2200,9 +2202,9 @@ writezone(const char *const name, const char *const string, char version, int h = (i == old0 ? thisdefaulttype : i == thisdefaulttype ? old0 : i); if (!omittype[h]) { - puttzcode(gmtoffs[h], fp); + puttzcode(utoffs[h], fp); putc(isdsts[h], fp); - putc(indmap[abbrinds[h]], fp); + putc(indmap[desigidx[h]], fp); } } if (thischarcnt != 0) @@ -2226,7 +2228,7 @@ writezone(const char *const name, const char *const string, char version, ++j; j = types[j - 1]; } - todo = tadd(trans[i], -gmtoffs[j]); + todo = tadd(trans[i], -utoffs[j]); } else todo = trans[i]; puttzcodepass(todo, fp, pass); puttzcode(corr[i], fp); @@ -2238,7 +2240,7 @@ writezone(const char *const name, const char *const string, char version, if (utcnt != 0) for (i = old0; i < typecnt; i++) if (!omittype[i]) - putc(ttisgmts[i], fp); + putc(ttisuts[i], fp); } fprintf(fp, "\n%s\n", string); close_file(fp, directory, name); @@ -2294,7 +2296,7 @@ doabbr(char *abbr, struct zone const *zp, char const *letters, if (slashp == NULL) { char letterbuf[PERCENT_Z_LEN_BOUND + 1]; if (zp->z_format_specifier == 'z') - letters = abbroffset(letterbuf, zp->z_gmtoff + stdoff); + letters = abbroffset(letterbuf, zp->z_utoff + stdoff); else if (!letters) letters = "%s"; sprintf(abbr, format, letters); @@ -2359,8 +2361,7 @@ stringoffset(char *result, zic_t offset) } static int -stringrule(char *result, const struct rule *const rp, const zic_t dstoff, - const zic_t gmtoff) +stringrule(char *result, struct rule *const rp, zic_t dstoff, zic_t utoff) { register zic_t tod = rp->r_tod; register int compat = 0; @@ -2407,8 +2408,8 @@ stringrule(char *result, const struct rule *const rp, const zic_t dstoff, result += sprintf(result, "M%d.%d.%d", rp->r_month + 1, week, wday); } - if (rp->r_todisgmt) - tod += gmtoff; + if (rp->r_todisut) + tod += utoff; if (rp->r_todisstd && !rp->r_isdst) tod += dstoff; if (tod != 2 * SECSPERMIN * MINSPERHOUR) { @@ -2500,7 +2501,7 @@ stringzone(char *result, struct zone const *zpfirst, ptrdiff_t zonecount) dstr.r_dycode = DC_DOM; dstr.r_dayofmonth = 1; dstr.r_tod = 0; - dstr.r_todisstd = dstr.r_todisgmt = false; + dstr.r_todisstd = dstr.r_todisut = false; dstr.r_isdst = stdrp->r_isdst; dstr.r_stdoff = stdrp->r_stdoff; dstr.r_abbrvar = stdrp->r_abbrvar; @@ -2508,7 +2509,7 @@ stringzone(char *result, struct zone const *zpfirst, ptrdiff_t zonecount) stdr.r_dycode = DC_DOM; stdr.r_dayofmonth = 31; stdr.r_tod = SECSPERDAY + stdrp->r_stdoff; - stdr.r_todisstd = stdr.r_todisgmt = false; + stdr.r_todisstd = stdr.r_todisut = false; stdr.r_isdst = false; stdr.r_stdoff = 0; stdr.r_abbrvar @@ -2521,7 +2522,7 @@ stringzone(char *result, struct zone const *zpfirst, ptrdiff_t zonecount) return -1; abbrvar = (stdrp == NULL) ? "" : stdrp->r_abbrvar; len = doabbr(result, zp, abbrvar, false, 0, true); - offsetlen = stringoffset(result + len, -zp->z_gmtoff); + offsetlen = stringoffset(result + len, - zp->z_utoff); if (! offsetlen) { result[0] = '\0'; return -1; @@ -2533,7 +2534,7 @@ stringzone(char *result, struct zone const *zpfirst, ptrdiff_t zonecount) dstrp->r_isdst, dstrp->r_stdoff, true); if (dstrp->r_stdoff != SECSPERMIN * MINSPERHOUR) { offsetlen = stringoffset(result + len, - -(zp->z_gmtoff + dstrp->r_stdoff)); + - (zp->z_utoff + dstrp->r_stdoff)); if (! offsetlen) { result[0] = '\0'; return -1; @@ -2541,7 +2542,7 @@ stringzone(char *result, struct zone const *zpfirst, ptrdiff_t zonecount) len += offsetlen; } result[len++] = ','; - c = stringrule(result + len, dstrp, dstrp->r_stdoff, zp->z_gmtoff); + c = stringrule(result + len, dstrp, dstrp->r_stdoff, zp->z_utoff); if (c < 0) { result[0] = '\0'; return -1; @@ -2550,7 +2551,7 @@ stringzone(char *result, struct zone const *zpfirst, ptrdiff_t zonecount) compat = c; len += strlen(result + len); result[len++] = ','; - c = stringrule(result + len, stdrp, dstrp->r_stdoff, zp->z_gmtoff); + c = stringrule(result + len, stdrp, dstrp->r_stdoff, zp->z_utoff); if (c < 0) { result[0] = '\0'; return -1; @@ -2568,12 +2569,12 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) register ptrdiff_t i, j; register bool usestart, useuntil; register zic_t starttime, untiltime; - register zic_t gmtoff; + register zic_t utoff; register zic_t stdoff; register zic_t year; register zic_t startoff; register bool startttisstd; - register bool startttisgmt; + register bool startttisut; register int type; register char * startbuf; register char * ab; @@ -2609,7 +2610,7 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) ** for noting the need to unconditionally initialize startttisstd. */ startttisstd = false; - startttisgmt = false; + startttisut = false; min_year = max_year = EPOCH_YEAR; if (leapseen) { updateminmax(leapminyear); @@ -2703,16 +2704,16 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) useuntil = i < (zonecount - 1); if (useuntil && zp->z_untiltime <= min_time) continue; - gmtoff = zp->z_gmtoff; + utoff = zp->z_utoff; eat(zp->z_filename, zp->z_linenum); *startbuf = '\0'; - startoff = zp->z_gmtoff; + startoff = zp->z_utoff; if (zp->z_nrules == 0) { stdoff = zp->z_stdoff; doabbr(startbuf, zp, NULL, zp->z_isdst, stdoff, false); - type = addtype(oadd(zp->z_gmtoff, stdoff), + type = addtype(oadd(zp->z_utoff, stdoff), startbuf, zp->z_isdst, startttisstd, - startttisgmt); + startttisut); if (usestart) { addtt(starttime, type); usestart = false; @@ -2748,16 +2749,16 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) if (useuntil) { /* ** Turn untiltime into UT - ** assuming the current gmtoff and + ** assuming the current utoff and ** stdoff values. */ untiltime = zp->z_untiltime; - if (!zp->z_untilrule.r_todisgmt) + if (!zp->z_untilrule.r_todisut) untiltime = tadd(untiltime, - -gmtoff); + -utoff); if (!zp->z_untilrule.r_todisstd) untiltime = tadd(untiltime, - -stdoff); + -stdoff); } /* ** Find the rule (of those to do, if any) @@ -2770,7 +2771,7 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) continue; eats(zp->z_filename, zp->z_linenum, rp->r_filename, rp->r_linenum); - offset = rp->r_todisgmt ? 0 : gmtoff; + offset = rp->r_todisut ? 0 : utoff; if (!rp->r_todisstd) offset = oadd(offset, stdoff); jtime = rp->r_temp; @@ -2804,7 +2805,7 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) usestart = false; if (usestart) { if (ktime < starttime) { - startoff = oadd(zp->z_gmtoff, + startoff = oadd(zp->z_utoff, stdoff); doabbr(startbuf, zp, rp->r_abbrvar, @@ -2813,9 +2814,9 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) false); continue; } - if (*startbuf == '\0' && - startoff == oadd(zp->z_gmtoff, - stdoff)) { + if (*startbuf == '\0' + && startoff == oadd(zp->z_utoff, + stdoff)) { doabbr(startbuf, zp, rp->r_abbrvar, @@ -2828,14 +2829,14 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) rp->r_filename, rp->r_linenum); doabbr(ab, zp, rp->r_abbrvar, rp->r_isdst, rp->r_stdoff, false); - offset = oadd(zp->z_gmtoff, rp->r_stdoff); + offset = oadd(zp->z_utoff, rp->r_stdoff); if (!want_bloat() && !useuntil && !do_extend && prevrp && rp->r_hiyear == ZIC_MAX && prevrp->r_hiyear == ZIC_MAX) break; type = addtype(offset, ab, rp->r_isdst, - rp->r_todisstd, rp->r_todisgmt); + rp->r_todisstd, rp->r_todisut); if (defaulttype < 0 && !rp->r_isdst) defaulttype = type; if (rp->r_hiyear == ZIC_MAX @@ -2856,9 +2857,9 @@ outzone(const struct zone *zpfirst, ptrdiff_t zonecount) if (*startbuf == '\0') error(_("can't determine time zone abbreviation to use just after until time")); else { - bool isdst = startoff != zp->z_gmtoff; + bool isdst = startoff != zp->z_utoff; type = addtype(startoff, startbuf, isdst, - startttisstd, startttisgmt); + startttisstd, startttisut); if (defaulttype < 0 && !isdst) defaulttype = type; addtt(starttime, type); @@ -2869,12 +2870,12 @@ error(_("can't determine time zone abbreviation to use just after until time")); */ if (useuntil) { startttisstd = zp->z_untilrule.r_todisstd; - startttisgmt = zp->z_untilrule.r_todisgmt; + startttisut = zp->z_untilrule.r_todisut; starttime = zp->z_untiltime; if (!startttisstd) starttime = tadd(starttime, -stdoff); - if (!startttisgmt) - starttime = tadd(starttime, -gmtoff); + if (!startttisut) + starttime = tadd(starttime, -utoff); } } if (defaulttype < 0) @@ -2924,11 +2925,11 @@ addtt(zic_t starttime, int type) } static int -addtype(zic_t gmtoff, char const *abbr, bool isdst, bool ttisstd, bool ttisgmt) +addtype(zic_t utoff, char const *abbr, bool isdst, bool ttisstd, bool ttisut) { register int i, j; - if (! (-1L - 2147483647L <= gmtoff && gmtoff <= 2147483647L)) { + if (! (-1L - 2147483647L <= utoff && utoff <= 2147483647L)) { error(_("UT offset out of range")); exit(EXIT_FAILURE); } @@ -2939,17 +2940,11 @@ addtype(zic_t gmtoff, char const *abbr, bool isdst, bool ttisstd, bool ttisgmt) if (j == charcnt) newabbr(abbr); else { - /* - ** See if there's already an entry for this zone type. - ** If so, just return its index. - */ - for (i = 0; i < typecnt; i++) { - if (gmtoff == gmtoffs[i] && isdst == isdsts[i] && - j == abbrinds[i] && - ttisstd == ttisstds[i] && - ttisgmt == ttisgmts[i]) - return i; - } + /* If there's already an entry, return its index. */ + for (i = 0; i < typecnt; i++) + if (utoff == utoffs[i] && isdst == isdsts[i] && j == desigidx[i] + && ttisstd == ttisstds[i] && ttisut == ttisuts[i]) + return i; } /* ** There isn't one; add a new one, unless there are already too @@ -2960,11 +2955,11 @@ addtype(zic_t gmtoff, char const *abbr, bool isdst, bool ttisstd, bool ttisgmt) exit(EXIT_FAILURE); } i = typecnt++; - gmtoffs[i] = gmtoff; + utoffs[i] = utoff; isdsts[i] = isdst; ttisstds[i] = ttisstd; - ttisgmts[i] = ttisgmt; - abbrinds[i] = j; + ttisuts[i] = ttisut; + desigidx[i] = j; return i; } diff --git a/zoneinfo2tdf.pl b/zoneinfo2tdf.pl index c8c5591..33a9d3b 100755 --- a/zoneinfo2tdf.pl +++ b/zoneinfo2tdf.pl @@ -28,7 +28,7 @@ while (<>) { $contZone = ''; if ($type eq 'zone') { - # Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL] + # Zone NAME UTOFF RULES/SAVE FORMAT [UNTIL] my $nfields = @fields; $nfields >= 5 or warn "bad zone line"; if ($nfields > 6) { -- 2.21.0

6 10

[PROPOSED] More clarification/explanation from RFC 8536
by Paul Eggert June 18, 2019

June 18, 2019

This just changes documentation: it does not change code or data. Mostly, it just adopts more terminology from RFC 8536. It also contains an example of what the std/wall and UT/local indicators are for. * newtzset.3, theory.html, tz-how-to.html, tzfile.5, tzfile.h, zic.8: In documentation and comments, make it clearer that local time equals wall clock time. * tzfile.5, tzfile.h: In documentation and comments, say that when isut is 1, isstd must also be 1. * tzfile.5: Specify that bytes are 8 bits, that binary integers use two's complement, and that booleans use 0 and 1. Say that UT offsets are never equal to -2**31, and that they realistically are in the range [-89999, 93599]. Say that leap second counts are signed. Say why std/wall and UT/local indicators are present, and give AKST9AKDT as an example. Do not say that the first standard-time ttinfo is used by localtime, as the actual heuristic is far more complicated; instead, document what RFC 8536 says as what's normally used. * zic.c (struct rule): Adjust comments. --- newtzset.3 | 4 ++-- theory.html | 10 ++++---- tz-how-to.html | 14 ++++++------ tzfile.5 | 62 +++++++++++++++++++++++++++++++++----------------- tzfile.h | 15 ++++++------ zic.8 | 16 ++++++------- zic.c | 6 ++--- 7 files changed, 73 insertions(+), 54 deletions(-) diff --git a/newtzset.3 b/newtzset.3 index 29e8a21..4959851 100644 --- a/newtzset.3 +++ b/newtzset.3 @@ -65,8 +65,8 @@ falls back on Universal Time (UT). .PP If .B TZ -is null, the best available approximation to local wall -clock time, as specified by the +is null, the best available approximation to local (wall +clock) time, as specified by the .IR tzfile (5)-format file .B localtime diff --git a/theory.html b/theory.html index e580ccc..61d556b 100644 --- a/theory.html +++ b/theory.html @@ -955,7 +955,7 @@ an older <code>zic</code>. </li> <li> In POSIX, there is no tamper-proof way for a process to learn the - system's best idea of local wall clock. + system's best idea of local (wall clock) time. This is important for applications that an administrator wants used only at certain times – without regard to whether the user has fiddled the @@ -1052,14 +1052,14 @@ an older <code>zic</code>. </li> <li> A function <code>tzsetwall</code> has been added to arrange for the - system's best approximation to local wall clock time to be delivered + system's best approximation to local (wall clock) time to be delivered by subsequent calls to <code>localtime</code>. - Source code for portable applications that "must" run on local wall - clock time should call <code>tzsetwall</code>; + Source code for portable applications that "must" run on local + time should call <code>tzsetwall</code>; if such code is moved to "old" systems that do not provide <code>tzsetwall</code>, you will not be able to generate an executable program. - (These functions also arrange for local wall clock time to + (These functions also arrange for local time to be used if <code>tzset</code> is called – directly or indirectly – and there is no <code>TZ</code> environment variable; portable applications should not, however, rely on this diff --git a/tz-how-to.html b/tz-how-to.html index 7274af4..2e4842d 100644 --- a/tz-how-to.html +++ b/tz-how-to.html @@ -102,7 +102,7 @@ in some localizable way. It’s used in the file, <code>pacificnew</code>, to determine whether a given year will have a US presidential election; but everything related to that use is commented out.) -<p>The <code>SAVE</code> column contains the wall clock offset from +<p>The <code>SAVE</code> column contains the local (wall clock) offset from local standard time. This is usually either zero for standard time or one hour for daylight saving time; but there’s no reason, in principle, why it can’t @@ -250,10 +250,10 @@ Rule US 2007 max - Nov Sun>=1 2:00 0 S <p>There are two interesting things to note here.</p> <p>First, the time that something happens (in the <code>AT</code> -column) is not necessarily the local wall clock time. The time can be +column) is not necessarily the local (wall clock) time. The time can be suffixed with ‘s’ (for “standard”) to mean -local standard time (different from wall clock time when observing -daylight saving time); or it can be suffixed with ‘g’, +local standard time, different from local (wall clock) time when observing +daylight saving time; or it can be suffixed with ‘g’, ‘u’, or ‘z’, all three of which mean the standard time at the <a href="https://en.wikipedia.org/wiki/Prime_Meridian">prime meridian</a>. @@ -265,8 +265,8 @@ href="https://en.wikipedia.org/wiki/Coordinated_Universal_Time">UTC</a>” (whichever was official at the time); ‘z’ stands for the <a href="https://en.wikipedia.org/wiki/Nautical_time">nautical time zone</a> Z (a.k.a. “Zulu” which, in turn, stands for ‘Z’). -The time can also be suffixed with ‘w’ meaning “wall -clock time;” but it usually isn’t because that’s the +The time can also be suffixed with ‘w’ meaning local (wall +clock) time; but it usually isn’t because that’s the default.</p> <p>Second, the day in the <code>ON</code> column, in addition to @@ -467,7 +467,7 @@ Zone Pacific/Honolulu ... 1933 Apr 30 2:00 <p>Hawaii tried daylight saving time for three weeks in 1933 and decided they didn’t like it. <code>8-) </code>Note that the <code>STDOFF</code> column always contains the standard time -offset, so the wall clock time during this period was GMT − +offset, so the local (wall clock) time during this period was GMT − 10:30 + 1:00 = GMT − 9:30.</p> <p>The <code>FORMAT</code> column specifies the usual abbreviation of diff --git a/tzfile.5 b/tzfile.5 index b591e56..d13029c 100644 --- a/tzfile.5 +++ b/tzfile.5 @@ -16,6 +16,13 @@ The timezone information files used by are typically found under a directory with a name like .IR /usr/share/zoneinfo . These files use the format described in Internet RFC 8536. +Each file is a sequence of 8-bit bytes. +In a file, a binary integer is represented by a sequence of one or +more bytes in network order (bigendian, or high-order byte first), +with all bits significant, +a signed binary integer is represented using two's complement, +and a boolean is represented by a one-byte binary integer that is +either 0 (false) or 1 (true). The format begins with a 44-byte header containing the following fields: .IP * 2 The magic four-byte ASCII sequence @@ -30,11 +37,7 @@ or .IP * Fifteen bytes containing zeros reserved for future use. .IP * -Six four-byte integer values -written in a standard byte order -(the high-order byte of the value is written first). -These values are, -in order: +Six four-byte integer values, in the following order: .RS .TP .I tzh_ttisutcnt @@ -64,7 +67,7 @@ depend on the contents of the header: .IP * 2 .I tzh_timecnt four-byte signed integer values sorted in ascending order. -These values are written in standard byte order. +These values are written in network byte order. Each is used as a transition time (as returned by .BR time (2)) at which the rules for computing local time change. @@ -96,7 +99,7 @@ struct ttinfo { .sp Each structure is written as a four-byte signed integer value for .IR tt_utoff , -in a standard byte order, followed by a one-byte value for +in network byte order, followed by a one-byte boolean for .I tt_isdst and a one-byte value for .IR tt_desigidx . @@ -114,14 +117,23 @@ serves as an index into the array of time zone abbreviation bytes that follow the .I ttinfo structure(s) in the file. +The +.I tt_utoff +value is never equal to -2**31, to let 32-bit clients negate it without +overflow. +Also, in realistic applications +.I tt_utoff +is in the range [-89999, 93599] (i.e., more than -25 hours and less +than 26 hours); this allows easy support by implementations that +already support the POSIX-required range [-24:59:59, 25:59:59]. .IP * .I tzh_leapcnt -pairs of four-byte values, written in standard byte order; +pairs of four-byte values, written in network byte order; the first value of each pair gives the nonnegative time (as returned by .BR time (2)) at which a leap second occurs; -the second gives the +the second is a signed integer specifying the .I total number of leap seconds to be applied during the time period starting at the given time. @@ -130,28 +142,36 @@ Each transition is for one leap second, either positive or negative; transitions always separated by at least 28 days minus 1 second. .IP * .I tzh_ttisstdcnt -standard/wall indicators, each stored as a one-byte value; +standard/wall indicators, each stored as a one-byte boolean; they tell whether the transition times associated with local time types -were specified as standard time or wall clock time, -and are used when a timezone file is used in handling POSIX-style -timezone environment variables. +were specified as standard time or local (wall clock) time. .IP * .I tzh_ttisutcnt -UT/local indicators, each stored as a one-byte value; +UT/local indicators, each stored as a one-byte boolean; they tell whether the transition times associated with local time types -were specified as UT or local time, -and are used when a timezone file is used in handling POSIX-style -timezone environment variables. +were specified as UT or local time. +If a UT/local indicator is set, the corresponding standard/wall indicator +must also be set. +.PP +The standard/wall and UT/local indicators were designed for +transforming a TZif file's transition times into transitions appropriate +for another time zone specified via a POSIX-style TZ string that lacks rules. +For example, when TZ="AKST9AKDT" and there is no TZif file "AKST9AKDT", +the transition times might be adapted from a TZif file with the +well-known name "posixrules" that is present only for this purpose and +is a copy of the file "America/New_York", a file with a different UT offset. +POSIX does not specify this obsolescent transformational behavior and +widely used platforms such as GNU/Linux do not support it correctly, so users +desiring Alaska time should specify TZ="America/Anchorage" for better +historical coverage, or TZ="AKST9AKDT,M3.2.0,M11.1.0" for POSIX +conformance and coverage for recent timestamps only. .PP The .BR localtime (3) function -uses the first standard-time +normally uses the first .I ttinfo structure in the file -(or simply the first -.I ttinfo -structure in the absence of a standard-time structure) if either .I tzh_timecnt is zero or the time argument is less than the first transition time recorded diff --git a/tzfile.h b/tzfile.h index 52673d6..ee91104 100644 --- a/tzfile.h +++ b/tzfile.h @@ -69,14 +69,15 @@ struct tzhead { ** one (char [4]) total correction after above ** tzh_ttisstdcnt (char)s indexed by type; if 1, transition ** time is standard time, if 0, -** transition time is wall clock time -** if absent, transition times are -** assumed to be wall clock time -** tzh_ttisutcnt (char)s indexed by type; if 1, transition -** time is UT, if 0, -** transition time is local time -** if absent, transition times are +** transition time is local (wall clock) +** time; if absent, transition times are ** assumed to be local time +** tzh_ttisutcnt (char)s indexed by type; if 1, transition +** time is UT, if 0, transition time is +** local time; if absent, transition +** times are assumed to be local time. +** When this is 1, the corresponding +** std/wall indicator must also be 1. */ /* diff --git a/zic.8 b/zic.8 index 02b6048..3a4d96f 100644 --- a/zic.8 +++ b/zic.8 @@ -385,13 +385,12 @@ to other applications requiring greater precision. The source format does not specify any maximum precision. Any of these forms may be followed by the letter .B w -if the given time is local +if the given time is local or .q "wall clock" time, .B s -if the given time is local -.q "standard" -time, or +if the given time is standard time without any adjustment for daylight saving, +or .B u (or .B g @@ -399,7 +398,7 @@ or .BR z ) if the given time is universal time; in the absence of an indicator, -wall clock time is assumed. +local (wall clock) time is assumed. These forms ignore leap seconds; for example, if a leap second occurs at 00:59:60 local time, .q "1:00" @@ -478,7 +477,8 @@ a file name component is a maximal substring that does not contain .q "/" . .TP .B STDOFF -The amount of time to add to UT to get standard time. +The amount of time to add to UT to get standard time, +without any adjustment for daylight saving. This field has the same format as the .B AT and @@ -636,7 +636,7 @@ or (an abbreviation of) .q "Rolling" if the leap second time given by the other fields should be interpreted as -local wall clock time. +local (wall clock) time. .SH "EXTENDED EXAMPLE" Here is an extended example of .B zic @@ -720,7 +720,7 @@ coincides with and is equal to a clock retreat caused by a change in UT offset, .B zic produces a single transition to daylight saving at the new UT offset -(without any change in wall clock time). +without any change in local (wall clock) time. To get separate transitions use multiple zone continuation lines specifying transition instants using universal time. diff --git a/zic.c b/zic.c index b3665bd..3fb32c7 100644 --- a/zic.c +++ b/zic.c @@ -92,10 +92,8 @@ struct rule { int r_wday; zic_t r_tod; /* time from midnight */ - bool r_todisstd; /* above is standard time if 1 */ - /* or wall clock time if 0 */ - bool r_todisut; /* above is GMT if 1 */ - /* or local time if 0 */ + bool r_todisstd; /* is r_tod standard time? */ + bool r_todisut; /* is r_tod UT? */ bool r_isdst; /* is this daylight saving time? */ zic_t r_save; /* offset from standard time */ const char * r_abbrvar; /* variable part of abbreviation */ -- 2.21.0

1 0

[PROPOSED] Fix 'zic -b slim' bug with TZ='CET'
by Paul Eggert June 15, 2019

June 15, 2019

Without this fix, 'zic -b slim' can mishandle transitions in the few obsolescent zones like CET that do not start with local mean time. For example, for CET it incorrectly optimizes away the first and third transitions, and treats the second transition as one to standard time instead of to DST. * zic.c (swaptypes): Remove. All uses removed. (writezone): Swap indices rather than contents of the old type 0 and the new (default) type 0 array entries. --- zic.c | 44 +++++++++++++++++++------------------------- 1 file changed, 19 insertions(+), 25 deletions(-) diff --git a/zic.c b/zic.c index 34228a5..03f33ee 100644 --- a/zic.c +++ b/zic.c @@ -1810,17 +1810,6 @@ atcomp(const void *avp, const void *bvp) return (a < b) ? -1 : (a > b); } -static void -swaptypes(int i, int j) -{ - { zic_t t = gmtoffs[i]; gmtoffs[i] = gmtoffs[j]; gmtoffs[j] = t; } - { char t = isdsts[i]; isdsts[i] = isdsts[j]; isdsts[j] = t; } - { unsigned char t = abbrinds[i]; abbrinds[i] = abbrinds[j]; - abbrinds[j] = t; } - { bool t = ttisstds[i]; ttisstds[i] = ttisstds[j]; ttisstds[j] = t; } - { bool t = ttisgmts[i]; ttisgmts[i] = ttisgmts[j]; ttisgmts[j] = t; } -} - struct timerange { int defaulttype; ptrdiff_t base, count; @@ -2066,7 +2055,6 @@ writezone(const char *const name, const char *const string, char version, THISDEFAULTTYPE appears as type 0 in the output instead of OLD0. TYPEMAP also omits unused types. */ old0 = strlen(omittype); - swaptypes(old0, thisdefaulttype); #ifndef LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH /* @@ -2085,12 +2073,16 @@ writezone(const char *const name, const char *const string, char version, if (isdsts[types[i]]) mrudst = types[i]; else mrustd = types[i]; - for (i = old0; i < typecnt; i++) - if (!omittype[i]) { - if (isdsts[i]) - hidst = i; - else histd = i; - } + for (i = old0; i < typecnt; i++) { + int h = (i == old0 ? thisdefaulttype + : i == thisdefaulttype ? old0 : i); + if (!omittype[h]) { + if (isdsts[h]) + hidst = i; + else + histd = i; + } + } if (hidst >= 0 && mrudst >= 0 && hidst != mrudst && gmtoffs[hidst] != gmtoffs[mrudst]) { isdsts[mrudst] = -1; @@ -2204,12 +2196,15 @@ writezone(const char *const name, const char *const string, char version, if (hicut) putc(currenttype, fp); - for (i = old0; i < typecnt; i++) - if (!omittype[i]) { - puttzcode(gmtoffs[i], fp); - putc(isdsts[i], fp); - putc((unsigned char) indmap[abbrinds[i]], fp); - } + for (i = old0; i < typecnt; i++) { + int h = (i == old0 ? thisdefaulttype + : i == thisdefaulttype ? old0 : i); + if (!omittype[h]) { + puttzcode(gmtoffs[h], fp); + putc(isdsts[h], fp); + putc(indmap[abbrinds[h]], fp); + } + } if (thischarcnt != 0) fwrite(thischars, sizeof thischars[0], thischarcnt, fp); @@ -2244,7 +2239,6 @@ writezone(const char *const name, const char *const string, char version, for (i = old0; i < typecnt; i++) if (!omittype[i]) putc(ttisgmts[i], fp); - swaptypes(old0, thisdefaulttype); } fprintf(fp, "\n%s\n", string); close_file(fp, directory, name); -- 2.21.0

1 0

[PROPOSED] * NEWS: Mention -b slim briefly.
by Paul Eggert June 14, 2019

June 14, 2019

--- NEWS | 1 + 1 file changed, 1 insertion(+) diff --git a/NEWS b/NEWS index 0e4c688..7aaae11 100644 --- a/NEWS +++ b/NEWS @@ -4,6 +4,7 @@ Unreleased, experimental changes Briefly: Brazil no longer observes DST. + 'zic -b slim' outputs smaller TZif files; please try it out. Palestine's 2019 spring-forward transition was on 03-29, not 03-30. Changes to future timestamps -- 2.21.0

1 0

[PROPOSED 1/3] Tune and simplify addtype
by Paul Eggert June 14, 2019

June 14, 2019

* zic.c (addtype): Avoid the need to call strcmp each time through the loop checking for duplicate zone types. The strcmp is unnecessary if we already have checked for duplicate abbreviations and so can just look at the strings’ offsets. So, look for those duplicates first. --- zic.c | 36 +++++++++++++++++++----------------- 1 file changed, 19 insertions(+), 17 deletions(-) diff --git a/zic.c b/zic.c index 2cd8cc7..3e27a48 100644 --- a/zic.c +++ b/zic.c @@ -2876,16 +2876,28 @@ addtype(zic_t gmtoff, char const *abbr, bool isdst, bool ttisstd, bool ttisgmt) { register int i, j; - /* - ** See if there's already an entry for this zone type. - ** If so, just return its index. - */ - for (i = 0; i < typecnt; ++i) { + if (! (-1L - 2147483647L <= gmtoff && gmtoff <= 2147483647L)) { + error(_("UT offset out of range")); + exit(EXIT_FAILURE); + } + + for (j = 0; j < charcnt; ++j) + if (strcmp(&chars[j], abbr) == 0) + break; + if (j == charcnt) + newabbr(abbr); + else { + /* + ** See if there's already an entry for this zone type. + ** If so, just return its index. + */ + for (i = 0; i < typecnt; i++) { if (gmtoff == gmtoffs[i] && isdst == isdsts[i] && - strcmp(abbr, &chars[abbrinds[i]]) == 0 && + j == abbrinds[i] && ttisstd == ttisstds[i] && ttisgmt == ttisgmts[i]) return i; + } } /* ** There isn't one; add a new one, unless there are already too @@ -2895,22 +2907,12 @@ addtype(zic_t gmtoff, char const *abbr, bool isdst, bool ttisstd, bool ttisgmt) error(_("too many local time types")); exit(EXIT_FAILURE); } - if (! (-1L - 2147483647L <= gmtoff && gmtoff <= 2147483647L)) { - error(_("UT offset out of range")); - exit(EXIT_FAILURE); - } + i = typecnt++; gmtoffs[i] = gmtoff; isdsts[i] = isdst; ttisstds[i] = ttisstd; ttisgmts[i] = ttisgmt; - - for (j = 0; j < charcnt; ++j) - if (strcmp(&chars[j], abbr) == 0) - break; - if (j == charcnt) - newabbr(abbr); abbrinds[i] = j; - ++typecnt; return i; } -- 2.21.0

1 2

UTC calculation for March 12, 3001 [IANA #1143241], [PR 9419866]
by Lasher, Beth June 10, 2019

June 10, 2019

In the year 3001, Daylight Savings time is applied on Sunday March 9, 3001 as expected. (Eastern Standard time). BUT on the following Thursday, March 12, 3001 at 3 am, it seems that another Daylight Savings Time change is applied. After March 12, 3001, the UTC time zone offset for Eastern Daylight Savings Time is 3 hours (not 4) and remains that way until the year 9999. Is this correct? What is the cause of this second time offset change?

10 16

[PROPOSED] Cite US DST legislation
by Paul Eggert June 7, 2019

June 7, 2019

* northamerica: Cite all the US federal DST legislation. (US): Adjust table to match the legislation more closely. This does not affect the TZif output files. --- northamerica | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) diff --git a/northamerica b/northamerica index 65827ec..52898de 100644 --- a/northamerica +++ b/northamerica @@ -93,10 +93,24 @@ # was the first nationwide legal time standard, and apparently # time was just called "Standard Time" or "Daylight Saving Time". -# From Arthur David Olson: -# US Daylight Saving Time ended on the last Sunday of *October* in 1974. -# See, for example, the front page of the Saturday, 1974-10-26 -# and Sunday, 1974-10-27 editions of the Washington Post. +# From Paul Eggert (2019-06-04): +# Here is the legal basis for the US federal rules. +# * Public Law 65-107 (1918-03-19) implemented standard and daylight saving +# time for the first time across the US, springing forward on March's last +# Sunday and falling back on October's last Sunday. +# * Public Law 66-40 (1919-08-20) repealed DST on October 1919's last Sunday. +# * Public Law 77-403 (1942-01-20) started wartime DST on 1942-02-09. +# * Public Law 79-187 (1945-09-25) ended wartime DST on 1945-09-30. +# * Public Law 89-387 (1966-04-13) reinstituted a national standard for DST, +# from April's last Sunday to October's last Sunday, effective 1967. +# * Public Law 93-182 (1973-12-15) moved the 1974 spring-forward to 01-06. +# * Public Law 94-434 (1974-10-05) moved the 1975 spring-forward to +# February's last Sunday. +# * Public Law 99-359 (1986-07-08) moved the spring-forward to April's first +# Sunday. +# * Public Law 109-50 (2005-08-08), effective 2007, moved the spring-forward +# to March's second Sunday and the fall-back to November's first Sunday. +# All transitions are at 02:00 local time. # From Arthur David Olson: # Before the Uniform Time Act of 1966 took effect in 1967, observance of @@ -152,11 +166,11 @@ Rule US 1918 1919 - Mar lastSun 2:00 1:00 D Rule US 1918 1919 - Oct lastSun 2:00 0 S Rule US 1942 only - Feb 9 2:00 1:00 W # War Rule US 1945 only - Aug 14 23:00u 1:00 P # Peace -Rule US 1945 only - Sep lastSun 2:00 0 S +Rule US 1945 only - Sep 30 2:00 0 S Rule US 1967 2006 - Oct lastSun 2:00 0 S Rule US 1967 1973 - Apr lastSun 2:00 1:00 D Rule US 1974 only - Jan 6 2:00 1:00 D -Rule US 1975 only - Feb 23 2:00 1:00 D +Rule US 1975 only - Feb lastSun 2:00 1:00 D Rule US 1976 1986 - Apr lastSun 2:00 1:00 D Rule US 1987 2006 - Apr Sun>=1 2:00 1:00 D Rule US 2007 max - Mar Sun>=8 2:00 1:00 D -- 2.21.0

5 8

tzdb-latest.tar.gz download issue
by Matt Johnson June 4, 2019

June 4, 2019

The lzip file, https://www.iana.org/time-zones/repository/tzdb-latest.tar.lz redirects to https://data.iana.org/time-zones/tzdb-latest.tar.lz and downloads successfully. The gzip file, https://www.iana.org/time-zones/repository/tzdb-latest.tar.gz redirects to https://data.iana.org/time-zones/tzdb-latest.tar.gz and then fails with a 404. They both used to work, not sure what happened. Thanks, Matt

4 4

Extend POSIX TZ to allow transition times outside 00-24 range, permanent DST
by Paul Eggert June 3, 2019

June 3, 2019

I recently proposed extending the POSIX spec for TZ strings. Please see: http://austingroupbugs.net/view.php?id=1252 This proposal is a modest one, as it doesn't specify TZ strings like 'America/Los_Angeles'. Instead it merely specifies the strings generated by zic and stored into TZif files. This includes strings like '<-03>3<-02>,M3.5.0/-2,M10.5.0/-1' which use times of day outside the 00-24 range, and strings like 'EST5EDT,0/0,J365/25' that represent permanent daylight saving time. This extension to POSIX TZ strings has already been specified in Internet RFC 8536 section 3.3.1 <https://tools.ietf.org/html/rfc8536#page-13> and I think it's a good idea to backport the extension to POSIX itself, as this will bless the common practice of taking the last line of a TZif file and using it as a TZ string on small platforms that lack room to store the TZif files. Please feel free to comment at austingroupbugs.net.

1 0

[PROPOSED] Add an outline to tz-link.html
by Paul Eggert June 1, 2019

June 1, 2019

* tz-link.html: Add an outline, so that it’s more like theory.html. --- tz-link.html | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 92 insertions(+), 2 deletions(-) diff --git a/tz-link.html b/tz-link.html index e0d8cc8..85fc001 100644 --- a/tz-link.html +++ b/tz-link.html @@ -18,6 +18,46 @@ histories and planned futures are often recorded only fitfully. Here is a summary of attempts to organize and record relevant data in this area. </p> + <h3>Outline</h3> + <nav> + <ul> + <li>The <code><abbr>tz</abbr></code> database product and process + <ul> + <li><a href="#tzdb">The <code><abbr>tz</abbr></code> database</a></li> + <li><a href="#download">Downloading the <code><abbr>tz</abbr></code> database</a></li> + <li><a href="#changes">Changes to the <code><abbr>tz</abbr></code> database</a></li> + <li><a href="#commentary">Commentary on the <code><abbr>tz</abbr></code> database</a></li> + </ul> + </li> + <li>Uses of the <code><abbr>tz</abbr></code> database + <ul> + <li><a href="#web">Web sites using recent versions of the <code><abbr>tz</abbr></code> database</a></li> + <li><a href="#protocols">Network protocols for <code><abbr>tz</abbr></code> data</a></li> + <li><a href="#compilers">Other <code><abbr>tz</abbr></code> compilers</a></li> + <li><a href="#TZif">Other <abbr>TZif</abbr> readers</a></li> + <li><a href="#software">Other <code><abbr>tz</abbr></code>-based time zone software</a></li> + </ul> + </li> + <li>Related data + <ul> + <li><a href="#other-dbs">Other time zone databases</a></li> + <li><a href="#maps">Maps</a></li> + <li><a href="#boundaries">Time zone boundaries</a></li> + </ul> + </li> + <li>Timekeeping concepts + <ul> + <li><a href="#civil">Civil time concepts and history</a></li> + <li><a href="#national">National histories of legal time</a></li> + <li><a href="#precision">Precision timekeeping</a></li> + <li><a href="#notation">Time notation</a></li> + <li><a href="#see-also">See also</a></li> + </ul> + </li> + </ul> + </nav> + +<section> <h2 id="tzdb">The <code><abbr title="time zone">tz</abbr></code> database</h2> <p> The <a href="https://en.wikipedia.org/wiki/Public_domain">public-domain</a> @@ -88,6 +128,9 @@ Universal Time</a> (<abbr>UTC</abbr>). The database also records when daylight saving time was in use, along with some time zone abbreviations such as <abbr>EST</abbr> for Eastern Standard Time in the <abbr>US</abbr>.</p> +</section> + +<section> <h2 id="download">Downloading the <code><abbr>tz</abbr></code> database</h2> <p> The following <a @@ -148,6 +191,9 @@ specified by <a href="https://tools.ietf.org/html/8536">Internet The code also lets you read a <abbr>TZif</abbr> file and interpret timestamps for that location.</p> +</section> + +<section> <h2 id="changes">Changes to the <code><abbr>tz</abbr></code> database</h2> <p> The <code><abbr>tz</abbr></code> code and data @@ -226,6 +272,9 @@ found in <a href="theory.html">Theory and pragmatics of the tz code and data</a> <a href="https://a0.github.io/a0-tzmigration/">A0 TimeZone Migration</a> displays changes between recent <code><abbr>tzdb</abbr></code> versions. </p> +</section> + +<section> <h2 id="commentary">Commentary on the <code><abbr>tz</abbr></code> database</h2> <ul> <li>The article @@ -239,6 +288,9 @@ href="https://blog.jonudell.net/2009/10/23/a-literary-appreciation-of-the-olsonz literary appreciation of the Olson/Zoneinfo/tz database</a> comments on the database's style.</li> </ul> +</section> + +<section> <h2 id="web">Web sites using recent versions of the <code><abbr>tz</abbr></code> database</h2> <p> @@ -270,6 +322,9 @@ calculates the current time difference between locations.</li> <li><a href="http://www.wx-now.com">Weather Now</a> and <a href="http://www.thetimenow.com">The Time Now</a> list the weather too.</li> </ul> +</section> + +<section> <h2 id="protocols">Network protocols for <code><abbr>tz</abbr></code> data</h2> <ul> <li>The <a href="https://www.ietf.org">Internet Engineering Task Force</a>'s @@ -302,6 +357,9 @@ title="Extensible Markup Language">XML</abbr></a> format, and a variant uses <a href="https://www.json.org"><abbr title="JavaScript Object Notation">JSON</abbr></a> format.</li> </ul> +</section> + +<section> <h2 id="compilers">Other <code><abbr>tz</abbr></code> compilers</h2> <ul> <li><a href="https://sourceforge.net/projects/vzic/">Vzic</a> is a <a @@ -439,6 +497,9 @@ source into text files, along with a runtime that can read those files. Tcl is freely available under a <abbr>BSD</abbr>-style license.</li> </ul> +</section> + +<section> <h2 id="TZif">Other <abbr>TZif</abbr> readers</h2> <ul> <li>The <a @@ -497,6 +558,9 @@ package contains <a href="https://www.haskell.org">Haskell</a> code that parses and uses <abbr>TZif</abbr> data. It is freely available under a <abbr>BSD</abbr>-style license.</li> </ul> +</section> + +<section> <h2 id="software">Other <code><abbr>tz</abbr></code>-based time zone software</h2> <ul> <li><a href="https://foxclocks.org">FoxClocks</a> @@ -554,6 +618,9 @@ a macOS program. Its developers <a href="http://veladg.com/tzoffer.html">offer free licenses</a> to <code><abbr>tz</abbr></code> contributors.</li> </ul> +</section> + +<section> <h2 id="other-dbs">Other time zone databases</h2> <ul> <li><a href="https://www.astro.com/atlas">Time-zone Atlas</a> @@ -582,6 +649,9 @@ Schedules Information Manual</a> of the International Air Transport Association gives current time zone rules for airports served by commercial aviation.</li> </ul> +</section> + +<section> <h2 id="maps">Maps</h2> <ul> <li>The <a href="https://www.cia.gov/index.html">United States Central @@ -609,6 +679,9 @@ much is time wrong around the world?</a> maps the difference between mean solar and standard time, highlighting areas such as western China where the two differ greatly. It's a bit out of date, unfortunately.</li> </ul> +</section> + +<section> <h2 id="boundaries">Time zone boundaries</h2> <p>Geographical boundaries between timezones are available from several <a href="https://en.wikipedia.org/wiki/Geolocation">geolocation</a> @@ -683,6 +756,9 @@ for land and territorial waters only). A captain can change ship's clocks any time after entering a new time zone; midnight changes are common.</li> </ul> +</section> + +<section> <h2 id="civil">Civil time concepts and history</h2> <ul> <li><a href="https://www.nist.gov/pml/time-and-frequency-division/popular-links/walk-thr…">A @@ -704,6 +780,9 @@ time zone boundary.</li> <li><a href="http://statoids.com/tconcept.html">Basic Time Zone Concepts</a> discusses terminological issues behind time zones.</li> </ul> +</section> + +<section> <h2 id="national">National histories of legal time</h2> <dl> <dt>Australia</dt> @@ -790,6 +869,9 @@ Navy (SOHMA) publishes an annual <a href="http://www.armada.gub.uy/sohma/index.php/servicios/datos-astronomicos" hreflang="es">almanac (in Spanish)</a>.</dd> </dl> +</section> + +<section> <h2 id="precision">Precision timekeeping</h2> <ul> <li><a @@ -878,6 +960,9 @@ without Leap Seconds</a> gives pointers on this contentious issue, which was active until 2015 and could become active again.</li> </ul> +</section> + +<section> <h2 id="notation">Time notation</h2> <ul> <li>The <a id="CLDR" href="http://cldr.unicode.org">Unicode Common Locale Data @@ -946,18 +1031,23 @@ any future changes to the rules. One should never set local time is nine hours ahead of <abbr>UT</abbr> and the time zone is called "<abbr>GMT</abbr>".</li> </ul> +</section> + +<section> <h2 id="see-also">See also</h2> <ul> <li><a href="theory.html">Theory and pragmatics of the tz code and data</a></li> <li><a href="tz-art.html">Time and the Arts</a></li> </ul> +</section> + +<footer> <hr> -<address> This web page is in the public domain, so clarified as of 2009-05-17 by Arthur David Olson. <br> Please send corrections to this web page to the <a href="mailto:tz@iana.org">time zone mailing list</a>. -</address> +</footer> </body> </html> -- 2.17.1

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Hong Kong Time history
by P Chan May 31, 2019

May 31, 2019

*According to the Hong Kong Daylight-Saving Regulations, 1941, the 1941 spring-forward transition was at 03:00. http://sunzi.lib.hku.hk/hkgro/view/g1941/304271.pdf http://sunzi.lib.hku.hk/hkgro/view/g1941/305516.pdf *According to some articles from South China Morning Post, +08 was resumed on 1945-11-18 at 02:00. https://i.imgur.com/M2IsZ3c.png https://i.imgur.com/iOPqrVo.png https://i.imgur.com/fffcGDs.png *Some newspapers published on said the 1946 spring-forward transition was on 04-21 at 00:00. The Kung Sheung Evening News 1946-04-20 (Chinese) https://i.imgur.com/ZSzent0.png https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2FH7zGe%2FKF%2BFLYsu… p.4 The Kung Sheung Daily News 1946-04-21 (Chinese) https://i.imgur.com/7ecmRlcm.png https://mmis.hkpl.gov.hk///c/portal/cover?c=QF757YsWv5%2BQBGt1%2BwUj5qG2Gqt… p.4 *According to the Summer Time Ordinance (1946), the fallback transitions between 1946 and 1952 were at 03:30 Standard Time (+08) http://oelawhk.lib.hku.hk/archive/files/bb74b06a74d5294620a15de560ab33c6.pdf *Some other laws and regulations related to DST from 1953 to 1979 Summer Time Ordinance 1953 https://i.imgur.com/IOlJMav.jpg Summer Time (Amendment) Ordinance 1965 https://i.imgur.com/8rofeLa.jpg Interpretation and General Clauses Ordinance (1966) https://i.imgur.com/joy3msj.jpg Emergency (Summer Time) Regulation 1973 https://i.imgur.com/OpRWrKz.jpg Interpretation and General Clauses (Amendment) Ordinance 1977 https://i.imgur.com/RaNqnc4.jpg Resolution of the Legislative Council passed on 9 May 1979 https://www.legco.gov.hk/yr78-79/english/lc_sitg/hansard/h790509.pdf#page=39 P Chan

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