- tz - lists.iana.org

FW: Comments and a question (VTIMEZONE from zoneinfo)
by Olson, Arthur David (NIH/NCI) [E] Sept. 15, 2011

Sept. 15, 2011

I'm forwarding this message from Phil Budne, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado -----Original Message----- From: Phil Budne [mailto:phil@ultimate.com] Sent: Thursday, September 15, 2011 5:33 To: tz(a)lecserver.nci.nih.gov Subject: Comments and a question (VTIMEZONE from zoneinfo) Some meta-comments, some comments, and a question: The page at http://www.twinsun.com/tz/tz-link.htm says: "Please send corrections to this web page to the time zone mailing list." Reading the directory at http://www.twinsun.com/tz/ shows the html file hasn't changed since 2008-06-30. Until I checked the twinsun.com WHOIS entry and saw it's owned by (current tz editor) Paul Eggert, I was wondering about whether to trust the page at all! At some point I lost the twinsun URL, and couldn't find a link in any obvious places, like Wikipedia, or ftp://elsie.nci.nih.gov/pub/ So my first comment is, the tz-link page needs more meta information (eg; date of last change & author). If the tz-link page is being maintained, there should be visible links to it in obvious places, and if it isn't, the page should have a comment reflecting this. It would be useful to have a .html file at ftp://elsie.nci.nih.gov/pub/ with current information, a link to current information, or at least a link to dated, but possibly useful information! Since this is my first public comment on the TZ list, let me express my long time admiration (I remember 4BSD when the rules were compiled into libc, and systems like TOPS-20, where they were in the "kernel") to all, past and present who have endeavored to make sense of this herculian problem (the proportions and magnitude of which are so truely perverse, that they could only have been made by mankind which, unlike nature, has no collective ability (or perhaps more succinctly or single authority powerful enough) to conform to Occam's Razor. As a side comment, there's nothing more Talmudic than commentary on commentary, so the appreciation of the tzdata files at http://blog.jonudell.net/2009/10/23/a-literary-appreciation-of-the-olsonzon… as talmudic is especially apropos! Finally, I know it's unlikely to change, but I find the fact that the tzdata tar files extract to the current directory (as opposed to creating a new directory) to be, to be kind "quaint". And I'll confess, I have a project that's so dated (a 1990's "finger" program, from back when exposing personal information on the Internet wasn't considered a problem) whose tar file is still available on my FTP server that has the same "charming" behavior of unloading it's contents into an unsuspecing extractor's current working directory. On to non-meta commentary: The link for "vzic": http://www.dachaplin.dsl.pipex.com/vzic/ is dead. There is a vzic project at: http://vzic.sourceforge.net/ and http://vzic.sourceforge.net/ Registered in 2006, and unchanged since 2010. http://code.google.com/p/tzurl/ says "This project is a fork of the vzic project." and appears to be under active development/maintenance. Related pages/projects are: http://tzurl.org/ which supplies "the latest Olson DB timezone definitions in iCalendar format" (generated using "tzurl") And "ical4j" http://code.google.com/p/ical4j/ "A suite of Java libraries for managing iCalendar and vCard data" and http://wiki.modularity.net.au/ical4j/index.php?title=Main_Page Which at http://wiki.modularity.net.au/ical4j/index.php?title=Timezones reads: iCal4j provides it's own TimeZone implementation as opposed to using the default Java timezone implementation. This is to ensure that all timezones in iCal4j can be accurately represented using a VTIMEZONE component in calendar data. The iCal4j timezone is essentially an implementation of java.util.TimeZone that is backed by a net.fortuna.ical4j.component.VTimeZone instance. Whilst a timezone instance may be created explicitly, typical usage is to obtain a TimeZoneRegistry instance and retrieve the timezone instance from the registry. And FINALLY, a question: Has anyone heard of code that reads binary tz data, and outputs VTIMEZONE info? Extracting rules for a specific year is sufficient. I can SWEAR I once saw an "unzic" program, but maybe I'm having a new bout of a particular form of senior moment I've experienced before, where I remember things that have never happened. We've been using vzic, but it isn't a great solution since RedHat Linux doesn't supply an RPM for the timezone source files that vzic needs to run, so we're stuck having to track version of the tzdata RPM on the specific version of RedHat that the product installs on. I got involved because I felt the seismic activity when the problem landed on the desk of an engineer without sufficient experience to grasp of the enormity of the hairball that had just hit him. Thanks Phil

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Comments and a question (VTIMEZONE from zoneinfo)
by Phil Budne Sept. 15, 2011

Sept. 15, 2011

Some meta-comments, some comments, and a question: The page at http://www.twinsun.com/tz/tz-link.htm says: "Please send corrections to this web page to the time zone mailing list." Reading the directory at http://www.twinsun.com/tz/ shows the html file hasn't changed since 2008-06-30. Until I checked the twinsun.com WHOIS entry and saw it's owned by (current tz editor) Paul Eggert, I was wondering about whether to trust the page at all! At some point I lost the twinsun URL, and couldn't find a link in any obvious places, like Wikipedia, or ftp://elsie.nci.nih.gov/pub/ So my first comment is, the tz-link page needs more meta information (eg; date of last change & author). If the tz-link page is being maintained, there should be visible links to it in obvious places, and if it isn't, the page should have a comment reflecting this. It would be useful to have a .html file at ftp://elsie.nci.nih.gov/pub/ with current information, a link to current information, or at least a link to dated, but possibly useful information! Since this is my first public comment on the TZ list, let me express my long time admiration (I remember 4BSD when the rules were compiled into libc, and systems like TOPS-20, where they were in the "kernel") to all, past and present who have endeavored to make sense of this herculian problem (the proportions and magnitude of which are so truely perverse, that they could only have been made by mankind which, unlike nature, has no collective ability (or perhaps more succinctly or single authority powerful enough) to conform to Occam's Razor. As a side comment, there's nothing more Talmudic than commentary on commentary, so the appreciation of the tzdata files at http://blog.jonudell.net/2009/10/23/a-literary-appreciation-of-the-olsonzon… as talmudic is especially apropos! Finally, I know it's unlikely to change, but I find the fact that the tzdata tar files extract to the current directory (as opposed to creating a new directory) to be, to be kind "quaint". And I'll confess, I have a project that's so dated (a 1990's "finger" program, from back when exposing personal information on the Internet wasn't considered a problem) whose tar file is still available on my FTP server that has the same "charming" behavior of unloading it's contents into an unsuspecing extractor's current working directory. On to non-meta commentary: The link for "vzic": http://www.dachaplin.dsl.pipex.com/vzic/ is dead. There is a vzic project at: http://vzic.sourceforge.net/ and http://vzic.sourceforge.net/ Registered in 2006, and unchanged since 2010. http://code.google.com/p/tzurl/ says "This project is a fork of the vzic project." and appears to be under active development/maintenance. Related pages/projects are: http://tzurl.org/ which supplies "the latest Olson DB timezone definitions in iCalendar format" (generated using "tzurl") And "ical4j" http://code.google.com/p/ical4j/ "A suite of Java libraries for managing iCalendar and vCard data" and http://wiki.modularity.net.au/ical4j/index.php?title=Main_Page Which at http://wiki.modularity.net.au/ical4j/index.php?title=Timezones reads: iCal4j provides it's own TimeZone implementation as opposed to using the default Java timezone implementation. This is to ensure that all timezones in iCal4j can be accurately represented using a VTIMEZONE component in calendar data. The iCal4j timezone is essentially an implementation of java.util.TimeZone that is backed by a net.fortuna.ical4j.component.VTimeZone instance. Whilst a timezone instance may be created explicitly, typical usage is to obtain a TimeZoneRegistry instance and retrieve the timezone instance from the registry. And FINALLY, a question: Has anyone heard of code that reads binary tz data, and outputs VTIMEZONE info? Extracting rules for a specific year is sufficient. I can SWEAR I once saw an "unzic" program, but maybe I'm having a new bout of a particular form of senior moment I've experienced before, where I remember things that have never happened. We've been using vzic, but it isn't a great solution since RedHat Linux doesn't supply an RPM for the timezone source files that vzic needs to run, so we're stuck having to track version of the tzdata RPM on the specific version of RedHat that the product installs on. I got involved because I felt the seismic activity when the problem landed on the desk of an engineer without sufficient experience to grasp of the enormity of the hairball that had just hit him. Thanks Phil

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FW: Gaza and Hebron in 2011?
by Wallace, Malcolm Sept. 15, 2011

Sept. 15, 2011

Second attempt to send this to the tz list... ________________________________ From: Wallace, Malcolm Sent: 14 September 2011 17:14 To: tz(a)lecserver.nci.nih.gov Subject: RE: Gaza and Hebron in 2011? http://timeanddate.com/worldclock/clockchange.html?n=702 http://timeanddate.com/worldclock/clockchange.html?n=1048 According to these sources: Hebron moved from standard time to daylight saving, at 0001hrs on 1st April 2011 Hebron reverted from daylight saving to standard time, at 0000hrs on 1st August 2011 Hebron moved from standard time to daylight saving, at 0000hrs on 30th August 2011 Hebron reverts from daylight saving to standard time, at 0300hrs on 3rd October 2011 Gaza moved from standard time to daylight saving, at 0001hrs on 2nd April 2011 Gaza reverted from daylight saving to standard time, at 0000hrs on 1st August 2011 Gaza has remained on standard time since the second occurrence of 2300hrs 31st July 2011. Other background articles: http://timeanddate.com/news/time/west-back-starts-dst-2011.html http://timeanddate.com/news/time/palestine-dst-2011.html http://timeanddate.com/news/time/gaza-dst-2011.html ________________________________ From: Arthur Olson [mailto:arthurdavidolson@gmail.com] Sent: 14 September 2011 16:43 To: tz(a)lecserver.nci.nih.gov Subject: Gaza and Hebron in 2011? So...for both Gaza and Hebron: 1. At what exact instant did the region revert to standard time in 2011? 2. At what exact instant (if any) did/does the region start its second stretch of daylight time in 2011? 3. At what exact instant (if any) did/does the region end its second stretch of daylight time in 2011? Thanks for any light folks can shed. --ado This email and any attachments are confidential and may also be privileged. If you are not the addressee, do not disclose, copy, circulate or in any other way use or rely on the information contained in this email or any attachments. If received in error, notify the sender immediately and delete this email and any attachments from your system. Emails cannot be guaranteed to be secure or error free as the message and any attachments could be intercepted, corrupted, lost, delayed, incomplete or amended. Standard Chartered PLC and its subsidiaries do not accept liability for damage caused by this email or any attachments and may monitor email traffic. Standard Chartered PLC is incorporated in England with limited liability under company number 966425 and has its registered office at 1 Aldermanbury Square, London, EC2V 7SB. Standard Chartered Bank ("SCB") is incorporated in England with limited liability by Royal Charter 1853, under reference ZC18. The Principal Office of SCB is situated in England at 1 Aldermanbury Square, London EC2V 7SB. In the United Kingdom, SCB is authorised and regulated by the Financial Services Authority under FSA register number 114276. If you are receiving this email from SCB outside the UK, please click http://www.standardchartered.com/global/email_disclaimer.html to refer to the information on other jurisdictions.

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Theory - zone creation description wrong
by Mr tobias conradi Sept. 14, 2011

Sept. 14, 2011

As far as I can see tzcode2011i/Theory is missing the fact that for each country at least one zone is created. I.e. maybe Luxembourg and France may have their own zones not due to different timestamp observance since 1970-01-01 00:00:00 UTC but simply due to the fact that they are different countries. CURRENT "the world is partitioned into regions whose clocks all agree about time stamps that occur after the somewhat-arbitrary cutoff point of the POSIX Epoch (1970-01-01 00:00:00 UTC). For each such region, the database records all known clock transitions, and labels the region with a notable location." PROPOSED "the world is partitioned into regions, named zones, whose clocks all agree about time stamps that occur after the somewhat-arbitrary cutoff point of the POSIX Epoch (1970-01-01 00:00:00 UTC). Additional for each country at least one zone is created. For each zone, the database records all known clock transitions, and labels the zone with a notable location. -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin, Germany http://tobiasconradi.com

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Gaza and Hebron in 2011?
by Arthur Olson Sept. 14, 2011

Sept. 14, 2011

So...for both Gaza and Hebron: 1. At what exact instant did the region revert to standard time in 2011? 2. At what exact instant (if any) did/does the region start its second stretch of daylight time in 2011? 3. At what exact instant (if any) did/does the region end its second stretch of daylight time in 2011? Thanks for any light folks can shed. --ado

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Antarctic timezones.
by Ivan S. Sept. 14, 2011

Sept. 14, 2011

Hi! I have information about time in few russian antarctic year-round bases. This is a list for inclusion in to the file "antarctica": # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Antarctica/Bellingshausen 0 - zzz 1968 -3 - BELL # Bellingshausen time Zone Antarctica/Mirny 0 - zzz 1956 7 - MIRN # Mirny time Zone Antarctica/Novolazarevskaya 0 - zzz 1959 0 - NOVO # Novolazarevskaya time Zone Antarctica/Progress 0 - zzz 1989 5 - PRGS # Progress time Zone Antarctica/Vostok 0 - zzz 1957 7 - VOST # Vostok time ================ And this strings are for inclusion in to the file "zone.tab": AQ -621159-0585337 Antarctica/Bellingshausen Bellingshausen Station, King George Island AQ -663320+0930111 Antarctica/Mirny Mirny Station, Davis coast AQ -704634+0114921 Antarctica/Novolazarevskaya Novolazarevskaya Station, Queen Maud Land AQ -692251+0762325 Antarctica/Progress Progress Station, Larsemann Hills AQ -782750+1065013 Antarctica/Vostok Vostok Station, Lake Vostok -- Best regards from Antarctica, Bellingshausen st. Ivan Sedychenkov

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Re: New zone for DE, split from Europe/Berlin
by Mr tobias conradi Sept. 12, 2011

Sept. 12, 2011

Alois Treindl 2011-09-12 22:25:46 GMT: > It is too early to propose this as a new zone for tzdata. Too early to be included is one thing, but too early to be proposed, is another thing. I think people are free to submit proposals at any time. > The practice for each zone in tzdata is that also the complete history > from the beginning of standard time must be included in the zone file. 1) Alois Treindl 2011-08-30 14:40:48 GMT: "I have compiled a complete timezone history of Germany." http://article.gmane.org/gmane.comp.time.tz/3951 Buesingen is part of Germany says http://www.buesingen.de/ "Büsingen am Hochrhein ist, wenn auch ringsum von Schweizer Hoheitsgebiet umgeben, deutsches Hoheitsgebiet" 2) I see no proof that it is practice "that complete history from the beginning of standard time must be included in the zone file." 3) I see no statement in the Theory file nor in README that would require such a practice. To the contrary, Theory file says: "As noted in the README file, the tz database is not authoritative (particularly not for pre-1970 time stamps), and it surely has errors. Corrections are welcome and encouraged." README says: "The information in the time zone data files is by no means authoritative; the files currently do not even attempt to cover all time stamps before 1970, and there are undoubtedly errors even for time stamps since 1970. If you know that the rules are different from those in a file, by all means feel free to change file (and please send the changed version to tz(a)elsie.nci.nih.gov for use in the future)." 4) I did not edit the file(s) in question since I don't know how to structure it. I hope someone with more knowledge can help to fix the current error for 1980. Additional pre-1970 imprecisions remain open to be fixed, the fix I propose does not hinder future progress. Little geography fix for my other email: >> The German exclave of Büsingen (http://www.buesingen.de/) surrounded by >> the Swiss canton Schaffhausen, and across the Rhine the cantons of Thurgau and Zurich -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin, Germany http://tobiasconradi.com

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US Mountain/Central border at Fort Pierre SD
by Steve Jones Sept. 12, 2011

Sept. 12, 2011

If I might seek the wisdom of the list on a minor topic: The current Mountain/Central boundary in the most recent official US DOT description (49CFR71.7, http://goo.gl/tqBou) has the border running right through Fort Pierre South Dakota. Here is the relevant text: > From the junction of the North Dakota-South Dakota boundary with > the Missouri River southerly along the main channel of that river > to the crossing of the original Chicago & North Western Railway > near Pierre; thence southwesterly to the northern boundary of Jones > County at the northeast corner of the NE 1, Sec. 6, T. 2 N., R. 30 > E. [note: that's about 44.18635, -100.54646) That makes a straight line from the railroad bridge north of town to 44.18635, -100.54646, this line not making much sense in the context of what's on the ground. A second-hand recent conversation with a Stanley County SD official was relayed to me, including the following: >...The person with whom I spoke said the official dividing line is >the Bad River, which makes more >sense than bisecting Fort Pierre. ... The communities along the >Bad River are so tiny (several houses each) that they don't have >official policies. The person with whom I spoke assumed they would >use Central Time because aside from Fort Pierre, there's no >significant populated place that's even close. There are several common sense border adjustments I could make here and probably be more accurate than the DOT (with regards to what a traveler would encounter in the area). Something like a line from the southern end of the dam at Lake Oahe southward to the Bad River, then following the Bad River soutwesterly to the northern border of Jones County... (and from that point rejoining the DOT description). I would prefer to use some authoritative reference - if possible. Any advice on how to proceed? All I can think of is to try a reference librarian in Pierre. Cheers, Steve Jones

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Theory - zone name, zone creation, zone lifetime
by Mr tobias conradi Sept. 12, 2011

Sept. 12, 2011

Theory reads: To represent this data, the world is partitioned into regions whose clocks all agree about time stamps that occur after the somewhat-arbitrary cutoff point of the POSIX Epoch (1970-01-01 00:00:00 UTC). Issue: 1) Where are these regions listed? The only lists of geographical areas I could find are: - the zones in zone.tab - (current) countries in iso3166.tab Theory reads: Use ISO 3166 (see the file iso3166.tab) to help decide whether something is a country. [...] or when locations change countries (e.g. Hong Kong from UK colony to China) Issue: 1) "help to decide" - decision process is undefined. 2) Hong Kong is listed in iso3166.tab as HK.For the purpose of zone creation is it 2a) a country,then it is confusing to say it changed country, or 2b) is it part of China (CN) then it is confusing to mark it with HK 3) In case HK and one of the zones in CN observed the same time since 1970, and that HK is not a country, would there be a merge and would one zone be dropped from zone.tab and any corresponding pre-1970 history be deleted? Theory reads: Within a file name component, use only ASCII letters Issue: 1) It is not defined what the term "file name component" refers to in the context of zone naming. Theory reads: E.g. prefer `Paris' to `France', since France has had multiple time zones. Issue: 1) It does not matter what zones France "had" in the past. 2) It may matter that Europe/Paris might be split in the future. 3) There is no proof in zone.tab that France had multiple time zones at all, there is only one line marked "FR": FR+4852+00220Europe/Paris -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin, Germany http://tobiasconradi.com

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Proclaimed changes to time of Newfoundland Time Zone for Daylight Savings Time
by Pelley, Michael Sept. 12, 2011

Sept. 12, 2011

Hi Folks, We received today, Monday, September 12, 2011, notification that the changes to the Newfoundland Standard Time Act have been proclaimed. The change in the Act stipulates that the change from Daylight Savings Time to Standard Time and from Standard Time to Daylight Savings Time now occurs at 2:00AM. I have included the text of the statute (URL http://www.assembly.nl.ca/legislation/sr/annualstatutes/2011/1106.chp.ht m <http://www.assembly.nl.ca/legislation/sr/annualstatutes/2011/1106.chp.h tm> ) and the official proclamation from THE NEWFOUNDLAND AND LABRADOR GAZETTE. Please update the TZ database to reflect this proclaimed change. Thank you. Cheers Mike ----------------------------------------------- MICHAEL PELLEY | Manager of Enterprise Architecture - Solution Delivery Office of the Chief Information Officer Executive Council Government of Newfoundland & Labrador P.O. Box 8700, 40 Higgins Line, St. John's NL A1B 4J6 709 729-7457 (t) | 709 729-6767 (f) | 709 690-2513 (c) | mpelley(a)gov.nl.ca <mailto:xxxxxxxxx@gov.nl.ca> “This email and any attached files are intended for the sole use of the primary and copied addressee(s) and may contain privileged and/or confidential information. Any distribution, use or copying by any means of this information is strictly prohibited. If you received this email in error, please delete it immediately and notify the sender.”

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data2011j
by Arthur David Olson Sept. 12, 2011

Sept. 12, 2011

The file... ftp://elsie.nci.nh.gov/pub/tzdata2011j.tar.gz ...is now available; this reflects the changes circulated recently on the times zone mailing list (contemporary changes for Samoa; past changes for Kenya, Uganda, and Tanzania); there are also two spelling corrections to comments in the australasia file (with thanks to Christos Zoulas). I expect another version will appear soon to handle changes in the Middle East (and perhaps in Russia); folks seeking to avoid version churn may want to wait a bit. --ado

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Re: no changes for 3 russian regions at this point
by Ruslan Ermilov Sept. 11, 2011

Sept. 11, 2011

Alexander Krivenyshev wrote: > Olson, Arthur David (NIH/NCI) [E] <olsona <at> > dc37a.nci.nih.gov> writes: > > > > > The latest 2011i tzdata does not have the Russian time > > > > change described by Alexander Krivenyshev: > > > "DRAFT DECISION OF THE GOVERNMENT OF Russian Federation... > > > > Does anyone know the current status of what was a draft > > decision at the time of Alexander's report? > > After some extensive media reports that 3 Russian regions may > change time zones this autumn and FIRST DRAFT DECISION OF THE > GOVERNMENT OF Russian Federation on August 8, 2011 about > upcoming changes on October 30, 2011: see link below: > (http://www.worldtimezone.com/dst_news/dst_news_russia33.html) > > there were some corrections done on August 25, 2011 on DRAFT > DECISION OF THE GOVERNMENT OF Russian Federation "On the > composition of the territories that make up each time zone, and > the procedure of calculation of time within time zones, and the > repeal of certain resolutions of the Government of the Russian > Federation", which shows NO time zones changes at this point > for Vladivostok (Primorsky region), Irkutsk region and Sakha > (Yakutia) will keep its current 3 time zones (MSK +6, +7, +8): > > 1. Vladivostok (Primorsky region) – will keep MSK+7 (UTC+11) > > 2. Sakha (Yakutia) – will keep its current 3 time zones: > MSK+6 (UTC+10), MSK+7 (UTC+11), MSK+8 (UTC+12) and > > 3. Irkutsk region – will keep MSK+5 (UTC+9) > > Original document (in Russian) on: > http://www.minpromtorg.gov.ru/docs/projects/531 > or > > http://www.worldtimezone.com/dst_news/dst_news_russia35.html > > I will keep my eyes open if there is any changes by October 30, > 2011. A final decision was made by Russian government on August 31, 2011, no. 725 (text in Russian): http://www.government.ru/gov/results/16355/ The contents of time zones didn't change since the draft.

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Datasource for IATA timezone files
by Karl Erik Bergaust Sept. 11, 2011

Sept. 11, 2011

Hi. Regarding Sources for Time Zone and Daylight Saving Time Data http://www.twinsun.com/tz/tz-link.htm International Air Transport Association timezone rules, are obtained from Innovata. http://www.innovata-llc.com/data/data.html ->> IATA Codes Data Files Regards Karl Erik

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Texas timezone history
by Jules Descartes Sept. 8, 2011

Sept. 8, 2011

I have reviewed the Texas timezone history before 1970. I attach my result, which proposes two additional Texas zones America/Houston and Amerca/Amarillo. I think there is an error in the current tzdata/northamerica file regarding Texas. It claims that Texas follows America/Chicago. But this is not the case as Texas had no DST in 1936, as Chicago did. Please check my data and my typing, as I am a bad typist.

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A small contribution to California timezone history
by Alois Treindl Sept. 8, 2011

Sept. 8, 2011

Calfornia, the US state with the highest population, seems to be one of the most regular timezone history, well represented by zone America/Los_Angeles. One exception has however been brought to my attention, which I report here, as a contribution to the completion of pre-1970 timezone history. # Information published to the Public Domain. # Palm Springs suffered under the shadow of Mt. San Jacinto and # decided to go on DST from 1946 Nov 17 for 120 days, # ending 1947 Mar 17. # Source: Beaver Valley Times, 1946 Nov 8, and other newspapers. # # Palm Springs is at 116w33. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Palm_Springs -7:36:12 - LMT 1883 Nov 18 12:23:48 -8:00 US P%sT 1946 Nov 17 02:00 -7:00 - PDT 1947 Mar 17 02:00 -8:00 CA P%sT 1967 -8:00 US P%sT

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re: Texas, typing corrections
by Jules Descartes Sept. 8, 2011

Sept. 8, 2011

Sorry I had several typing errors in the last paragraph of the attached file. I attach a corrected copy.

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Russian Time Zone
by Wong Ren Sept. 8, 2011

Sept. 8, 2011

Hi, The latest 2011i tzdata does not have the Russian time change described by Alexander Krivenyshev: "DRAFT DECISION OF THE GOVERNMENT OF Russian Federation "On the composition of the territories that make up each time zone, and the procedure of calculation of time within time zones, and the Repeal of certain resolutions of the Government of the Russian Federation on August 8, 2011" On October 30, 2011, at 02:00 local time the following new time calculations will be applied: Irkutsk region will use the 5th Russian time zone (MSK +4) Republic of Sakha (Yakutia) will use the 7th Russian time zone (MSK +6) Primorsky Krai (Vladivostok) will use the 7th Russian time zone (MSK +6)" It is not clear to me what's the exact impact for these additional changes to the original proposal . I have summarized what I think are the changes in the table below, could someone verify? TimeZone Current At 2011 Oct 30 2:00s Description Asia/Irkustsk GMT+9 (MSK+5) GMT+8 (MSK+4) Asia/Valdivostok GMT+11 (MSK+7) GMT+10(MSK+6) Asia/Yakulsk GMT+10 (MSK+6) GMT+10(MSK+6) No change. Republic of Sakha (Yakutia) ? Asia/Sakalin GMT+11 (MSK+7) GMT+10(MSK+6 Republic of Sakha (Yakutia) ? Asia/Magadan GMT+12 (MSK+8) GMT+10 (MSK+6) Republic of Sakha (Yakutia) ? Asia/Kamachatka GMT+12 (MSK+8) GMT+10 (MSK+6) Republic of Sakha (Yakutia) ? Asia/Anadyr GMT+12 (MSK+8) GMT+10 (MSK+6) Republic of Sakha (Yakutia) ? Essentially, GMT+9, GMT+11 and GMT+12 are entirely eliminated. Please confirm the above changes. Also based on the tzdata2011i, would the following changes apply? 2186d2185 < 8:00 - IRKT 2011 Oct 30 2:00s 2225,2226d2223 < 10:00 - VLAT 2011 Oct 30 2:00s < 2238,2239d2234 < 10:00 - SAKT 2011 Oct 30 2:00s < 2254d2248 < 10:00 - MAGT 2011 Oct 30 2:00s 2267d2260 < 10:00 - PETT 2011 Oct 30 2:00s 2278d2270 < 10:00 - ANAT 2011 Oct 30 2:00s ________________________________ "This e-mail message may contain confidential, commercial or privileged information that constitutes proprietary information of Comverse Technology or its subsidiaries. If you are not the intended recipient of this message, you are hereby notified that any review, use or distribution of this information is absolutely prohibited and we request that you delete all copies and contact us by e-mailing to: security(a)comverse.com. Thank You."

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Alabama timezone history
by Jules Descartes Sept. 6, 2011

Sept. 6, 2011

I have started reviewing pre-1970 US timezone history. The information is so complex that it is best approached state by state. I have started alphabetically with Alabama, but will probably continue with some mixture like - most populous states first - simplest states first For Alabama history my first draft proposes ten zones. This is more detailed than Shanks, wo distinguished seven areas. It is only a first step. Newspaper archive research (sadly) reveals that there are far more complex details involved in a complete history, and many questions about extension of zones can probably never be answered because there are not enough precise records. I have made a map, together with the help of colleagues, and uploaded it to wikimedia, as I am not sure whether image files work in this mailing list. Certainly we save bandwidth, as in the old times. License question: For now I have decided to place my work under the widest possible Creative Commons. This differs from the Public Domain license only in so far, as sources need to be quoted. Aside of that the use of the information is free, also within commercial projects of any kind. Please check and proof read the proposed zones. I am a bad typist.

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Gaza and West Bank back to daylight saving time after pause
by Steffen Thorsen Sept. 6, 2011

Sept. 6, 2011

Gaza and the West Bank did go back to standard time in the beginning of August, and will now enter daylight saving time again on 2011-08-30 00:00 (so two periods of DST in 2011). The pause was because of Ramadan. http://www.maannews.net/eng/ViewDetails.aspx?ID=416217 Additional info: http://www.timeanddate.com/news/time/palestine-dst-2011.html Best regards, Steffen Thorsen - timeanddate.com

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Thu moi den du hoi nghi nong nghiep tai tinh Kiet Lam
by Luong Van Hoa Sept. 5, 2011

Sept. 5, 2011

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proposed time zone package changes (Samoa, Kenya, Uganda, Tanzania)
by Arthur David Olson Sept. 3, 2011

Sept. 3, 2011

Below find proposed time zone package changes; the executive summary: africa Four instances of 2:44:45 changed to 2:45 (one in a comment, one each in zones Africa/Dar_es_Salaam, Africa/Kampala, Africa/Nairobi) (thanks to Jules Descartes) australasia Samoa uses DST in 2011-2012 (thanks to Laupue Raymond Hughes) The Samoa changes affect time stamps beginning later this month. I'm holding off on West Bank and Gaza changes pending further information and feedback. If no problems are found, these changes will show up on the ftp site on 2011-09-12. --ado diff -r -c old/africa new/africa *** old/africa Wed Aug 17 13:47:14 2011 --- new/africa Sat Sep 3 08:53:28 2011 *************** *** 1,5 **** # <pre> ! # @(#)africa 8.32 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)africa 8.33 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 58,64 **** # I invented the following abbreviations; corrections are welcome! # 2:00 WAST West Africa Summer Time # 2:30 BEAT British East Africa Time (no longer used) ! # 2:44:45 BEAUT British East Africa Unified Time (no longer used) # 3:00 CAST Central Africa Summer Time (no longer used) # 3:00 SAST South Africa Summer Time (no longer used) # 3:00 EAT East Africa Time --- 58,64 ---- # I invented the following abbreviations; corrections are welcome! # 2:00 WAST West Africa Summer Time # 2:30 BEAT British East Africa Time (no longer used) ! # 2:45 BEAUT British East Africa Unified Time (no longer used) # 3:00 CAST Central Africa Summer Time (no longer used) # 3:00 SAST South Africa Summer Time (no longer used) # 3:00 EAT East Africa Time *************** *** 396,402 **** Zone Africa/Nairobi 2:27:16 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1940 ! 2:44:45 - BEAUT 1960 3:00 - EAT # Lesotho --- 396,402 ---- Zone Africa/Nairobi 2:27:16 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1940 ! 2:45 - BEAUT 1960 3:00 - EAT # Lesotho *************** *** 971,977 **** # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 3:00 - EAT 1948 ! 2:44:45 - BEAUT 1961 3:00 - EAT # Togo --- 971,977 ---- # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 3:00 - EAT 1948 ! 2:45 - BEAUT 1961 3:00 - EAT # Togo *************** *** 1097,1103 **** Zone Africa/Kampala 2:09:40 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1948 ! 2:44:45 - BEAUT 1957 3:00 - EAT # Zambia --- 1097,1103 ---- Zone Africa/Kampala 2:09:40 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1948 ! 2:45 - BEAUT 1957 3:00 - EAT # Zambia diff -r -c old/australasia new/australasia *** old/australasia Wed Aug 17 17:27:48 2011 --- new/australasia Sat Sep 3 08:50:46 2011 *************** *** 1,5 **** # <pre> ! # @(#)australasia 8.25 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)australasia 8.26 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 499,505 **** # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> ! # From Raymond Hughes (2010-10-07): # Please see # <a href="http://www.mcil.gov.ws"> # http://www.mcil.gov.ws --- 499,505 ---- # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> ! # From Laupue Raymond Hughes (2010-10-07): # Please see # <a href="http://www.mcil.gov.ws"> # http://www.mcil.gov.ws *************** *** 509,515 **** # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks # backwards from 1:00am to 12:00am" ! # From Raymond Hughes (2011-03-07) # I believe this will be posted shortly on the website # <a href="http://www.mcil.gov.ws"> # www.mcil.gov.ws --- 509,515 ---- # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks # backwards from 1:00am to 12:00am" ! # From Laupue Raymond Hughes (2011-03-07): # I believe this will be posted shortly on the website # <a href="http://www.mcil.gov.ws"> # www.mcil.gov.ws *************** *** 573,584 **** # Act affects the provisions of the Daylight Saving Act 2009, except that # it defines Samoa standard time.... Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 -11:00 1:00 WSDT 2011 Apr 2 4:00 ! -11:00 - WST 2011 Dec 30 13:00 - WST # Solomon Is --- 573,601 ---- # Act affects the provisions of the Daylight Saving Act 2009, except that # it defines Samoa standard time.... + # From Laupue Raymond Hughes (2011-09-02): + # <a href="http://www.mcil.gov.ws/mcil_publications.html"> + # http://www.mcil.gov.ws/mcil_publications.html + # </a> + # + # here is the official website publication for Samoa DST and dateline change + # + # DST + # Year End Time Start Time + # 2011 - - - - - - 24 September 3:00am to 4:00am + # 2012 01 April 4:00am to 3:00am - - - - - - + # + # Dateline Change skip Friday 30th Dec 2011 + # Thursday 29th December 2011 23:59:59 Hours + # Saturday 31st December 2011 00:00:00 Hours Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 -11:00 1:00 WSDT 2011 Apr 2 4:00 ! -11:00 - WST 2011 Sep 24 3:00 ! -11:00 1:00 WSDT 2011 Dec 30 ! 13:00 1:00 WSDT 2012 Apr 1 4:00 13:00 - WST # Solomon Is

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RE: proposed time zone package changes (South Sudan, Samoa, Newfoundland...)
by Arthur David Olson Sept. 3, 2011

Sept. 3, 2011

As a reminder, here are the changes proposed last week: africa Add Africa/Juba (South Sudan) zone. australasia Samoa skips over 2011-12-30 (thanks to David Zuelke and Mark Sim-Smith). europe Use KALT as abbreviation for Europe/Kalinigrad from spring 2011 forward (thanks to Yoshito Umaoka). northamerica Newfoundland changes time of day for DST start and end to 2:00 a.m. starting fall 2011 and forward (thanks to Michael Pelley). Change America/Resolute use of EST to 2006-2007 only (thanks to Chris Walton). Assume Metlakatla abandoned use of daylight saving as a result of its 1983 vote. Avoid unnecessary use of US rule in America/Honolulu; fix two typos in America/Honolulu comments. iso3166.tab Add SS (South Sudan) entry. zone.tab Change America/Resolute entry to Central Standard Time. (thanks to Chris Walton). Add SS (South Sudan, Africa/Juba) entry. And here are additional changes being proposed today: Makefile Remove itca.jpg from distribution (thanks to Paul Eggert) australasia Remove unneeded "+" from "+13:00" in Samoa entry (thanks to Tim Parenti) iso3166.tab Fix comment regarding ISO 3166 (thanks to Philip Newton) newstrftime.3 Remove incorrect status comment (thanks to Paul Eggert) northamerica Adjust America/Goose_Bay as well as America/St_Johns from fall 2011 forward (thanks to Chris Walton) I expect to update the ftp versions on 2011-08-29. --ado diff -r -c old/Makefile new/Makefile *** old/Makefile Thu Apr 14 12:42:47 2011 --- new/Makefile Wed Aug 24 07:46:28 2011 *************** *** 1,5 **** # <pre> ! # @(#)Makefile 8.10 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)Makefile 8.11 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 270,276 **** DATA= $(YDATA) $(NDATA) $(SDATA) $(TABDATA) leapseconds yearistype.sh WEB_PAGES= tz-art.htm tz-link.htm MISC= usno1988 usno1989 usno1989a usno1995 usno1997 usno1998 \ ! itca.jpg $(WEB_PAGES) checktab.awk workman.sh \ zoneinfo2tdf.pl ENCHILADA= $(DOCS) $(SOURCES) $(DATA) $(MISC) --- 270,276 ---- DATA= $(YDATA) $(NDATA) $(SDATA) $(TABDATA) leapseconds yearistype.sh WEB_PAGES= tz-art.htm tz-link.htm MISC= usno1988 usno1989 usno1989a usno1995 usno1997 usno1998 \ ! $(WEB_PAGES) checktab.awk workman.sh \ zoneinfo2tdf.pl ENCHILADA= $(DOCS) $(SOURCES) $(DATA) $(MISC) diff -r -c old/africa new/africa *** old/africa Wed Jun 15 06:43:13 2011 --- new/africa Wed Aug 17 13:47:14 2011 *************** *** 1,5 **** # <pre> ! # @(#)africa 8.31 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)africa 8.32 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 956,961 **** --- 956,966 ---- Zone Africa/Khartoum 2:10:08 - LMT 1931 2:00 Sudan CA%sT 2000 Jan 15 12:00 3:00 - EAT + + # South Sudan + Zone Africa/Juba 2:06:24 - LMT 1931 + 2:00 Sudan CA%sT 2000 Jan 15 12:00 + 3:00 - EAT # Swaziland # Zone NAME GMTOFF RULES FORMAT [UNTIL] diff -r -c old/australasia new/australasia *** old/australasia Wed Jun 15 06:53:04 2011 --- new/australasia Wed Aug 17 17:27:48 2011 *************** *** 1,5 **** # <pre> ! # @(#)australasia 8.23 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)australasia 8.25 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 529,540 **** # Margaret Fruean ACTING CHIEF EXECUTIVE OFFICER MINISTRY OF COMMERCE, # INDUSTRY AND LABOUR 28th February 2011 Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 -11:00 1:00 WSDT 2011 Apr 2 4:00 ! -11:00 - WST # Solomon Is # excludes Bougainville, for which see Papua New Guinea --- 529,585 ---- # Margaret Fruean ACTING CHIEF EXECUTIVE OFFICER MINISTRY OF COMMERCE, # INDUSTRY AND LABOUR 28th February 2011 + # From David Zuelke (2011-05-09): + # Subject: Samoa to move timezone from east to west of international date line + # + # <a href="http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963"> + # http://www.morningstar.co.uk/uk/markets/newsfeeditem.aspx?id=138501958347963 + # </a> + + # From Mark Sim-Smith (2011-08-17): + # I have been in contact with Leilani Tuala Warren from the Samoa Law + # Reform Commission, and she has sent me a copy of the Bill that she + # confirmed has been passed...Most of the sections are about maps rather + # than the time zone change, but I'll paste the relevant bits below. But + # the essence is that at midnight 29 Dec (UTC-11 I suppose), Samoa + # changes from UTC-11 to UTC+13: + # + # International Date Line Bill 2011 + # + # AN ACT to provide for the change to standard time in Samoa and to make + # consequential amendments to the position of the International Date + # Line, and for related purposes. + # + # BE IT ENACTED by the Legislative Assembly of Samoa in Parliament + # assembled as follows: + # + # 1. Short title and commencement-(1) This Act may be cited as the + # International Date Line Act 2011. (2) Except for section 5(3) this Act + # commences at 12 o'clock midnight, on Thursday 29th December 2011. (3) + # Section 5(3) commences on the date of assent by the Head of State. + # + # [snip] + # + # 3. Interpretation - [snip] "Samoa standard time" in this Act and any + # other statute of Samoa which refers to 'Samoa standard time' means the + # time 13 hours in advance of Co-ordinated Universal Time. + # + # 4. Samoa standard time - (1) Upon the commencement of this Act, Samoa + # standard time shall be set at 13 hours in advance of Co-ordinated + # Universal Time for the whole of Samoa. (2) All references to Samoa's + # time zone and to Samoa standard time in Samoa in all legislation and + # instruments after the commencement of this Act shall be references to + # Samoa standard time as provided for in this Act. (3) Nothing in this + # Act affects the provisions of the Daylight Saving Act 2009, except that + # it defines Samoa standard time.... + Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 -11:00 1:00 WSDT 2011 Apr 2 4:00 ! -11:00 - WST 2011 Dec 30 ! 13:00 - WST # Solomon Is # excludes Bougainville, for which see Papua New Guinea diff -r -c old/europe new/europe *** old/europe Wed Jun 15 07:31:00 2011 --- new/europe Wed Aug 17 12:52:01 2011 *************** *** 1,5 **** # <pre> ! # @(#)europe 8.33 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)europe 8.34 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 2034,2040 **** 2:00 Poland CE%sT 1946 3:00 Russia MSK/MSD 1991 Mar 31 2:00s 2:00 Russia EE%sT 2011 Mar 27 2:00s ! 3:00 - EET # # From Oscar van Vlijmen (2001-08-25): [This region consists of] # Respublika Adygeya, Arkhangel'skaya oblast', --- 2034,2040 ---- 2:00 Poland CE%sT 1946 3:00 Russia MSK/MSD 1991 Mar 31 2:00s 2:00 Russia EE%sT 2011 Mar 27 2:00s ! 3:00 - KALT # # From Oscar van Vlijmen (2001-08-25): [This region consists of] # Respublika Adygeya, Arkhangel'skaya oblast', diff -r -c old/iso3166.tab new/iso3166.tab *** old/iso3166.tab Wed Jun 15 18:41:48 2011 --- new/iso3166.tab Wed Aug 17 17:26:53 2011 *************** *** 1,5 **** # <pre> ! # @(#)iso3166.tab 8.9 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # ISO 3166 alpha-2 country codes --- 1,5 ---- # <pre> ! # @(#)iso3166.tab 8.11 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # ISO 3166 alpha-2 country codes *************** *** 21,29 **** # # Lines beginning with `#' are comments. # ! # From Arthur David Olson (2011-06-15): ! # Resynchronized today with the ISO3116 site ! # (deleting AN and adding BQ, CW, and SX). # #country- #code country name --- 21,28 ---- # # Lines beginning with `#' are comments. # ! # From Arthur David Olson (2011-08-17): ! # Resynchronized today with the ISO 3166 site (adding SS for South Sudan). # #country- #code country name *************** *** 234,239 **** --- 233,239 ---- SN Senegal SO Somalia SR Suriname + SS South Sudan ST Sao Tome & Principe SV El Salvador SX Sint Maarten Only in old: itca.jpg diff -r -c old/newstrftime.3 new/newstrftime.3 *** old/newstrftime.3 Thu Dec 16 12:24:35 2010 --- new/newstrftime.3 Wed Aug 24 07:48:33 2011 *************** *** 227,232 **** newtzset(3), time(2), tzfile(5) ! .\" @(#)newstrftime.3 8.2 ! .\" This file is in the public domain, so clarified as of ! .\" 2009-05-17 by Arthur David Olson. --- 227,230 ---- newtzset(3), time(2), tzfile(5) ! .\" @(#)newstrftime.3 8.3 diff -r -c old/northamerica new/northamerica *** old/northamerica Wed Jun 15 07:05:20 2011 --- new/northamerica Wed Aug 17 17:33:36 2011 *************** *** 1,5 **** # <pre> ! # @(#)northamerica 8.42 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)northamerica 8.48 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 468,473 **** --- 468,477 ---- # own time. I asked about daylight saving; they said it wasn't used. I # did not inquire about practices in the past. + # From Arthur David Olson (2011-08-17): + # For lack of better information, assume that Metlakatla's + # abandonment of use of daylight saving resulted from the 1983 vote. + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 -8:57:41 - LMT 1900 Aug 20 12:00 *************** *** 493,499 **** -8:00 US P%sT 1946 -8:00 - PST 1969 -8:00 US P%sT 1983 Oct 30 2:00 ! -8:00 US MeST Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 -9:18:55 - LMT 1900 Aug 20 12:00 -9:00 - YST 1942 --- 497,503 ---- -8:00 US P%sT 1946 -8:00 - PST 1969 -8:00 US P%sT 1983 Oct 30 2:00 ! -8:00 - MeST Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 -9:18:55 - LMT 1900 Aug 20 12:00 -9:00 - YST 1942 *************** *** 593,600 **** -10:30 - HST 1933 Apr 30 2:00 #Laws 1933 -10:30 1:00 HDT 1933 May 21 12:00 #Laws 1933+12 -10:30 - HST 1942 Feb 09 2:00 #Schmitt&Cox+2 ! -10:30 1:00 HDT 1945 Sep 30 2:00 #Schmitt&Fox+2 ! -10:30 US H%sT 1947 Jun 8 2:00 #Schmitt&Fox+2 -10:00 - HST # Now we turn to US areas that have diverged from the consensus since 1970. --- 597,604 ---- -10:30 - HST 1933 Apr 30 2:00 #Laws 1933 -10:30 1:00 HDT 1933 May 21 12:00 #Laws 1933+12 -10:30 - HST 1942 Feb 09 2:00 #Schmitt&Cox+2 ! -10:30 1:00 HDT 1945 Sep 30 2:00 #Schmitt&Cox+2 ! -10:30 - HST 1947 Jun 8 2:00 #Schmitt&Cox+2 -10:00 - HST # Now we turn to US areas that have diverged from the consensus since 1970. *************** *** 1163,1174 **** # From Paul Eggert (2000-10-02): # INMS (2000-09-12) says that, since 1988 at least, Newfoundland switches # at 00:01 local time. For now, assume it started in 1987. Rule StJohns 1987 only - Apr Sun>=1 0:01 1:00 D Rule StJohns 1987 2006 - Oct lastSun 0:01 0 S Rule StJohns 1988 only - Apr Sun>=1 0:01 2:00 DD Rule StJohns 1989 2006 - Apr Sun>=1 0:01 1:00 D ! Rule StJohns 2007 max - Mar Sun>=8 0:01 1:00 D ! Rule StJohns 2007 max - 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] --- 1167,1205 ---- # From Paul Eggert (2000-10-02): # INMS (2000-09-12) says that, since 1988 at least, Newfoundland switches # at 00:01 local time. For now, assume it started in 1987. + + # From Michael Pelley (2011-08-05): + # The Government of Newfoundland and Labrador has pending changes to + # modify the hour for daylight savings time to come into effect in + # November 2011. This modification would change the time from 12:01AM to + # 2:00AM on the dates of the switches of Daylight Savings Time to/from + # Standard Time. + # + # As a matter of reference, in Canada provinces have the authority of + # setting time zone information. The legislation has passed our + # legislative body (The House of Assembly) and is awaiting the + # proclamation to come into effect. You may find this information at: + # <a href="http://www.assembly.nl.ca/legislation/sr/lists/Proclamation.htm"> + # http://www.assembly.nl.ca/legislation/sr/lists/Proclamation.htm + # </a> + # and + # search within that web page for Standard Time (Amendment) Act. The Act + # may be found at: + # <a href="http://www.assembly.nl.ca/business/bills/Bill1106.htm"> + # http://www.assembly.nl.ca/business/bills/Bill1106.htm + # </a> + # ... + # MICHAEL PELLEY | Manager of Enterprise Architecture - Solution Delivery + # Office of the Chief Information Officer Executive Council Government of + # Newfoundland & Labrador P.O. Box 8700, 40 Higgins Line, St. John's NL + # A1B 4J6 + Rule StJohns 1987 only - Apr Sun>=1 0:01 1:00 D Rule StJohns 1987 2006 - Oct lastSun 0:01 0 S Rule StJohns 1988 only - Apr Sun>=1 0:01 2:00 DD Rule StJohns 1989 2006 - Apr Sun>=1 0:01 1:00 D ! 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] *************** *** 1178,1184 **** -3:30:52 StJohns N%sT 1935 Mar 30 -3:30 StJohns N%sT 1942 May 11 -3:30 Canada N%sT 1946 ! -3:30 StJohns N%sT # most of east Labrador --- 1209,1216 ---- -3:30:52 StJohns N%sT 1935 Mar 30 -3:30 StJohns N%sT 1942 May 11 -3:30 Canada N%sT 1946 ! -3:30 StJohns N%sT 2011 Nov ! -3:30 Canada N%sT # most of east Labrador *************** *** 1192,1198 **** -3:30 StJohns N%sT 1942 May 11 -3:30 Canada N%sT 1946 -3:30 StJohns N%sT 1966 Mar 15 2:00 ! -4:00 StJohns A%sT # west Labrador, Nova Scotia, Prince Edward I --- 1224,1231 ---- -3:30 StJohns N%sT 1942 May 11 -3:30 Canada N%sT 1946 -3:30 StJohns N%sT 1966 Mar 15 2:00 ! -4:00 StJohns A%sT 2011 Nov ! -4:00 Canada A%sT # west Labrador, Nova Scotia, Prince Edward I *************** *** 1924,1944 **** # daylight saving.... # http://www.nnsl.com/frames/newspapers/2006-11/nov13_06none.html ! # From Chris Walton (2007-03-14): ! # Today I phoned the "hamlet office" to find out what Resolute was doing with ! # its clocks. # ! # The individual that answered the phone confirmed that the clocks did not ! # move at the end of daylight saving on October 29/2006. He also told me that ! # the clocks did not move this past weekend (March 11/2007).... - # From Chris Walton (2008-11-13): - # ...the residents of Resolute believe that they are changing "time zones" - # twice a year. In winter months, local time is qualified with "Eastern - # Time" which is really "Eastern Standard Time (UTC-5)". In summer - # months, local time is qualified with "Central Time" which is really - # "Central Daylight Time (UTC-5)"... - # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NT_YK 1918 only - Apr 14 2:00 1:00 D Rule NT_YK 1918 only - Oct 27 2:00 0 S --- 1957,2026 ---- # daylight saving.... # http://www.nnsl.com/frames/newspapers/2006-11/nov13_06none.html ! # From Chris Walton (2011-03-21): ! # Back in 2007 I initiated the creation of a new "zone file" for Resolute ! # Bay. Resolute Bay is a small community located about 900km north of ! # the Arctic Circle. The zone file was required because Resolute Bay had ! # decided to use UTC-5 instead of UTC-6 for the winter of 2006-2007. # ! # According to new information which I received last week, Resolute Bay ! # went back to using UTC-6 in the winter of 2007-2008... ! # ! # On March 11/2007 most of Canada went onto daylight saving. On March ! # 14/2007 I phoned the Resolute Bay hamlet office to do a "time check." I ! # talked to somebody that was both knowledgeable and helpful. I was able ! # to confirm that Resolute Bay was still operating on UTC-5. It was ! # explained to me that Resolute Bay had been on the Eastern Time zone ! # (EST) in the winter, and was now back on the Central Time zone (CDT). ! # i.e. the time zone had changed twice in the last year but the clocks ! # had not moved. The residents had to know which time zone they were in ! # so they could follow the correct TV schedule... ! # ! # On Nov 02/2008 most of Canada went onto standard time. On Nov 03/2008 I ! # phoned the Resolute Bay hamlet office...[D]ue to the challenging nature ! # of the phone call, I decided to seek out an alternate source of ! # information. I found an e-mail address for somebody by the name of ! # Stephanie Adams whose job was listed as "Inns North Support Officer for ! # Arctic Co-operatives." I was under the impression that Stephanie lived ! # and worked in Resolute Bay... ! # ! # On March 14/2011 I phoned the hamlet office again. I was told that ! # Resolute Bay had been using Central Standard Time over the winter of ! # 2010-2011 and that the clocks had therefore been moved one hour ahead ! # on March 13/2011. The person I talked to was aware that Resolute Bay ! # had previously experimented with Eastern Standard Time but he could not ! # tell me when the practice had stopped. ! # ! # On March 17/2011 I searched the Web to find an e-mail address of ! # somebody that might be able to tell me exactly when Resolute Bay went ! # off Eastern Standard Time. I stumbled on the name "Aziz Kheraj." Aziz ! # used to be the mayor of Resolute Bay and he apparently owns half the ! # businesses including "South Camp Inn." This website has some info on ! # Aziz: ! # <a href="http://www.uphere.ca/node/493"> ! # http://www.uphere.ca/node/493 ! # </a> ! # ! # I sent Aziz an e-mail asking when Resolute Bay had stopped using ! # Eastern Standard Time. ! # ! # Aziz responded quickly with this: "hi, The time was not changed for the ! # 1 year only, the following year, the community went back to the old way ! # of "spring ahead-fall behind" currently we are zulu plus 5 hrs and in ! # the winter Zulu plus 6 hrs" ! # ! # This of course conflicted with everything I had ascertained in November 2008. ! # ! # I sent Aziz a copy of my 2008 e-mail exchange with Stephanie. Aziz ! # responded with this: "Hi, Stephanie lives in Winnipeg. I live here, You ! # may want to check with the weather office in Resolute Bay or do a ! # search on the weather through Env. Canada. web site" ! # ! # If I had realized the Stephanie did not live in Resolute Bay I would ! # never have contacted her. I now believe that all the information I ! # obtained in November 2008 should be ignored... ! # I apologize for reporting incorrect information in 2008. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NT_YK 1918 only - Apr 14 2:00 1:00 D Rule NT_YK 1918 only - Oct 27 2:00 0 S *************** *** 1965,1978 **** -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 Canada E%sT # aka Qausuittuq - # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - Rule Resolute 2006 max - Nov Sun>=1 2:00 0 ES - Rule Resolute 2007 max - Mar Sun>=8 2:00 0 CD Zone America/Resolute 0 - zzz 1947 Aug 31 # Resolute founded -6:00 NT_YK C%sT 2000 Oct 29 2:00 -5:00 - EST 2001 Apr 1 3:00 -6:00 Canada C%sT 2006 Oct 29 2:00 ! -5:00 Resolute %sT # aka Kangiqiniq Zone America/Rankin_Inlet 0 - zzz 1957 # Rankin Inlet founded -6:00 NT_YK C%sT 2000 Oct 29 2:00 --- 2047,2058 ---- -6:00 Canada C%sT 2000 Oct 29 2:00 -5:00 Canada E%sT # aka Qausuittuq Zone America/Resolute 0 - zzz 1947 Aug 31 # Resolute founded -6:00 NT_YK C%sT 2000 Oct 29 2:00 -5:00 - EST 2001 Apr 1 3:00 -6:00 Canada C%sT 2006 Oct 29 2:00 ! -5:00 - EST 2007 Mar 11 3:00 ! -6:00 Canada C%sT # aka Kangiqiniq Zone America/Rankin_Inlet 0 - zzz 1957 # Rankin Inlet founded -6:00 NT_YK C%sT 2000 Oct 29 2:00 diff -r -c old/zone.tab new/zone.tab *** old/zone.tab Wed Jun 15 18:33:42 2011 --- new/zone.tab Wed Aug 17 13:36:43 2011 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.45 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 1,5 ---- # <pre> ! # @(#)zone.tab 8.47 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # *************** *** 120,126 **** CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut - most locations CA +6608-06544 America/Pangnirtung Eastern Time - Pangnirtung, Nunavut ! CA +744144-0944945 America/Resolute Eastern Standard Time - Resolute, Nunavut CA +484531-0913718 America/Atikokan Eastern Standard Time - Atikokan, Ontario and Southampton I, Nunavut CA +624900-0920459 America/Rankin_Inlet Central Time - central Nunavut CA +4953-09709 America/Winnipeg Central Time - Manitoba & west Ontario --- 120,126 ---- CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut - most locations CA +6608-06544 America/Pangnirtung Eastern Time - Pangnirtung, Nunavut ! CA +744144-0944945 America/Resolute Central Standard Time - Resolute, Nunavut CA +484531-0913718 America/Atikokan Eastern Standard Time - Atikokan, Ontario and Southampton I, Nunavut CA +624900-0920459 America/Rankin_Inlet Central Time - central Nunavut CA +4953-09709 America/Winnipeg Central Time - Manitoba & west Ontario *************** *** 361,366 **** --- 361,367 ---- SN +1440-01726 Africa/Dakar SO +0204+04522 Africa/Mogadishu SR +0550-05510 America/Paramaribo + SS +0451+03136 Africa/Juba ST +0020+00644 Africa/Sao_Tome SV +1342-08912 America/El_Salvador SX +180305-0630250 America/Lower_Princes

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Tonga standard time changes, attn. Paul Eggert
by Alois Treindl Sept. 2, 2011

Sept. 2, 2011

attention Paul Eggert: I am reading through the comments for zone Pacific/Tonga and there you write on 2006-03-22: ... go with Mundell where "Mundell" means his article by Don Mundell http://www.tongatapu.net.to/tonga/homeland/timebegins.htm In reading this article, I cannot see where he places the transition from standard meridian 185°e (12:20h) to 195°e (13:00h) into the year 1999. What I read is that he talks about the change in New Zealand timezone from meridian 172.5°e (11:30h) to 180°e (12:00h) on 1946-jan-01, and that the Crown prince Tungi, wanted to maintain the 50 minutes difference to New Zealand. But it appears that no change was made then, in 1946, and Tonga now had only a 20 min difference to New Zealand. I cannot see how you derive a change in 1999 from what Mundell writes. Please clarify. Shanks has this change in 1968, but as usual he gives no source. PS: does anyone know of a way to get access to old IATA SSIM manuals? I rember those being voluminous books which travel agents used to look up flight schedules. For several years, I used to collect older copies of these manuals from a travel agent and use them to look up timezones, as they were documented for each airport, together with begin/end dates for DST if such a change fell into the two-month period a manual covered. I had a collection of many years from the late 1970ies and the 1980ies, but threw them out when I got hold of Shanks' books. Now I would love to check some information in them again, but so far have been unable to find where copies are held in an archive.

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FW: small error in zone Africa/Nairobi
by Olson, Arthur David (NIH/NCI) [E] Sept. 1, 2011

Sept. 1, 2011

I'm forwarding this message from Jules Descartes; after it was sent, Jules was added to the time zone mailing list. --ado From: Jules Descartes [mailto:descartes.jules@gmail.com] Sent: Wednesday, August 31, 2011 10:01 To: tz(a)lecserver.nci.nih.gov Subject: Re: small error in zone Africa/Nairobi In zone Africa/Nairobi tzdata has 2:44:45 - BEAUT 1960 I think this is a typographic error and should be 2:45 Shanks, Gabriel and Le Corre all have 2:45

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subscribe
by Jules Descartes Aug. 31, 2011

Aug. 31, 2011

please subscribe me

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