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Time zone Asia/Qyzylorda
by Alexander Konzurovski Dec. 20, 2018

Dec. 20, 2018

Dear maintainers of the Time Zone Database! I would like to inform you that Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from UTC+6 to UTC+5 effective December 21st, 2018. The legal document is located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language). Accordingly resolution the time zone must be changed on December 20 18:00 UTC. -- Alexander Konzurovski

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Time zones in the news
by Arthur David Olson Dec. 20, 2018

Dec. 20, 2018

"Time Lords: a history of authoritarian time changes" by Elena Goukassian in Lapham's Quarterly. (Thanks to Nikita S--@singareddynm on Twitter--for the pointer.) https://www.laphamsquarterly.org/roundtable/time-lords ---ado

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[PROPOSED] Metlakatla goes back to Alaska time next year
by Paul Eggert Dec. 16, 2018

Dec. 16, 2018

* NEWS: Mention this. * northamerica (America/Metlakatla): Go back to Alaska time next year at the first opportunity. --- NEWS | 6 ++++-- northamerica | 8 +++++++- 2 files changed, 11 insertions(+), 3 deletions(-) diff --git a/NEWS b/NEWS index abc6094..667cec7 100644 --- a/NEWS +++ b/NEWS @@ -25,8 +25,10 @@ Unreleased, experimental changes Changes to past and future timestamps Metlakatla moved from Alaska to Pacific standard time on 2018-11-04. - It did not change clocks that day and is now on -08 indefinitely, - reverting to its form before fall 2015. (Thanks to Ryan Stanley.) + It did not change clocks that day and remains on -08 this winter. + (Thanks to Ryan Stanley.) It will revert to the usual Alaska + rules next spring, so this change affects only timestamps + from 2018-11-04 through 2019-03-10. Change to past timestamps diff --git a/northamerica b/northamerica index 17597e2..faaf979 100644 --- a/northamerica +++ b/northamerica @@ -605,6 +605,11 @@ Zone America/Los_Angeles -7:52:58 - LMT 1883 Nov 18 12:07:02 # They will be gmtoff=-28800 year-round. # https://www.facebook.com/141055983004923/photos/pb.141055983004923.-2207520… +# From Paul Eggert (2018-12-16): +# In a 2018-12-11 special election, Metlakatla voted to go back to +# Alaska time (including daylight saving time) starting next year. +# https://www.krbd.org/2018/12/12/metlakatla-to-follow-alaska-standard-time-a… + # Zone NAME GMTOFF 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 @@ -632,7 +637,8 @@ Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 19 15:44:55 -8:00 US P%sT 1983 Oct 30 2:00 -8:00 - PST 2015 Nov 1 2:00 -9:00 US AK%sT 2018 Nov 4 2:00 - -8:00 - PST + -8:00 - PST 2019 Mar Sun>=8 3:00 + -9:00 US AK%sT Zone America/Yakutat 14:41:05 - LMT 1867 Oct 19 15:12:18 -9:18:55 - LMT 1900 Aug 20 12:00 -9:00 - YST 1942 -- 2.17.1

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FW: [Bug time/23976] trunk/timezone/zdump.c:811: missing call to va_end ?
by David Binderman Dec. 14, 2018

Dec. 14, 2018

Hello there, Forwarded bug report ________________________________________ https://sourceware.org/bugzilla/show_bug.cgi?id=23976 --- Comment #1 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- This code is imported from external sources and not modified locally in glibc. Please report your concern to tz(a)iana.org, not here. -- You are receiving this mail because: You reported the bug.

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Error in the Time Zone Database
by serhii.demediuk＠cyberpolice.gov.ua Dec. 7, 2018

Dec. 7, 2018

Cyberpolice Department of National Police of Ukraine presents its compliments and wish to inform your organization regarding the following recent change. Information posted at https://www.iana.org/time-zones suggests that the latest release of the time zone database (version from 10/26/2018), states that Crimea (Ukrainian Autonomous Republic of Crimea) belongs to the time zone "MSK" and is marked with the country code "RU". This information was found in the archive, which contains the full description of the data, codes and applications, and is located at https://data.iana.org/time-zones/releases/tzdb-2018g.tar.lz. Information about the code of Crimea was found in the file "zone.tab" within the specified archive. We consider it necessary to draw your attention to the fact that Crimea is a temporarily occupied part of Ukraine. This fact is generally acknowledged by the international community, which is confirmed by a number of international legal document, including UN General Assembly resolution. Thus, by referring Crimea with the country code "RU", your organization actually accepts and supports the aggressive actions of the Russian Federation who’s armed forces annexed this part of Ukraine. Such recognition may be considered as a criminal offense by the Ukrainian criminal law and we will be obliged to start formal criminal proceedings as it is stipulated in article 110 of the Criminal Code of Ukraine "Infringement of territorial integrity of Ukraine". As you probably know, the aggression of the Russian Federation against Ukraine is still ongoing and any ambiguous decision by countries or international organizations is used by the authorities of the aggressor country to justify their actions. We would like to add that there are Ukrainian citizens still living in Crimea and adhere to the legislation of Ukraine. For their beliefs, such citizens are persecuted by the authorities of Russian Federation. International support for Ukrainian citizens in their aspiration to renew the territorial integrity of Ukraine is extremely important, and in this case your organization can play a positive role. We understand the apolitical status of your organization and respect the existing rules for determining of the actual time zone, but considering the international legal status of Crimea, which is part of Ukraine, we propose to correct this mistake and to change the current version of the time zone database in order to determine that the country code of Crimea is «UA». Best regards, Head of the Cyberpolice Department of the National Police of Ukraine Serhii Demediuk tel.: +380443743738 e-mail: serhii.demediuk(a)cyberpolice.gov.ua Ukraine, Kyiv

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posix for asia/tehran is wrong
by Mark Nov. 30, 2018

Nov. 30, 2018

I've been adding DST time zone to espurna (https://github.com/xoseperez/espurna/pull/1295) All dst entries but asia/tehran, use Mm.n.d format to specify dst dates. The Tehran use 'Jn': "Asia/Tehran","<+0330>-3:30<+0430>,J80/0,J264/0" When I implement this 'J' format, I came out a day short. From https://en.wikipedia.org/wiki/Iran_Standard_Time: The Iranian DST starts on March 22 and ends on September 22 each year with the exception of leapyears in which the DST starts and ends one day prior. Year DST Start Date and Time DST End Date and Time *2014* Sat, Mar 22, 0:00 AM Mon, Sep 22, 0:00 AM *2015* Sun, Mar 22, 0:00 AM Tue, Sep 22, 0:00 AM *2016* Mon, Mar 21, 0:00 AM Wed, Sep 21, 0:00 AM *2017* Wed, Mar 22, 0:00 AM Fri, Sep 22, 0:00 AM *2018* Thu, Mar 22, 0:00 AM Sat, Sep 22, 0:00 AM This mean Tehran should be "Asia/Tehran","<+0330>-3:30<+0430>,80/0,264/0". The 'n' format, which counts 29 Feb, and starts count from 0, so would not come up a day short on non-leap years.

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[PROPOSED] * northamerica: Herbert Copeland stops time.
by Paul Eggert Nov. 30, 2018

Nov. 30, 2018

--- northamerica | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/northamerica b/northamerica index e590a30..17597e2 100644 --- a/northamerica +++ b/northamerica @@ -792,6 +792,22 @@ Zone America/Boise -7:44:49 - LMT 1883 Nov 18 12:15:11 # For a map of Indiana's time zone regions, see: # https://en.wikipedia.org/wiki/Time_in_Indiana # +# From Paul Eggert (2018-11-30): +# A brief but entertaining history of time in Indiana describes a 1949 debate +# in the Indiana House where city legislators (who favored "fast time") +# tussled with farm legislators (who didn't) over a bill to outlaw DST: +# "Lacking enough votes, the city faction tries to filibuster until time runs +# out on the session at midnight, but rural champion Rep. Herbert Copeland, +# R-Madison, leans over the gallery railing and forces the official clock +# back to 9 p.m., breaking it in the process. The clock sticks on 9 as the +# debate rages on into the night. The filibuster finally dies out and the +# bill passes, while outside the chamber, clocks read 3:30 a.m. In the end, +# it doesn't matter which side won. The law has no enforcement powers and +# is simply ignored by fast-time communities." +# How Indiana went from 'God's time' to split zones and daylight-saving. +# Indianapolis Star. 2018-11-27 14:58 -05. +# https://www.indystar.com/story/news/politics/2018/11/27/indianapolis-indian… +# # From Paul Eggert (2007-08-17): # Since 1970, most of Indiana has been like America/Indiana/Indianapolis, # with the following exceptions: -- 2.17.1

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Timezone history for some Pacific Islands.
by Phake Nick Nov. 30, 2018

Nov. 30, 2018

>From a Japanese wiki site https://wiki.suikawiki.org/n/南洋群島の標準時 there are some time change history about Pacific Islands that are not included in the tz database. Mainly, the history of time used in those islands during, before and after Japanese administration, and also DST used in Guam during 1960s and 1970s. For "Southern Islands" (modern region of Mariana + Palau + Federation of Micronesia + Marshall Islands): * A 1906 Japanese magazine shown the Caroline Islands and Mariana Islands who was occupied by Germany at the time as GMT+10, together with the like of German New Guinea. However there is a marking saying it have not been implemented (yet). No further information after that were found. * Japan invaded those islands in 1914, and records shows that they were instructed to use JST at the time * 1915 January telecommunication record on the Jaluit Atoll shows they use the meridian of 170E as standard time (GMT+11:20), which is similar to the longitude of the atoll. * 1915 February record say the 170E standard time is to be used until February 9 noon, and after February 9 noon they are to use JST. * However these are time used within the Japanese Military at the time and probably does not reflect the time used by local resident at the time (that is if they keep their own time back then) * In January 1919 the occupying force issued a command that split the area into three different timezone with meridian of 135E, 150E, 165E (JST+0, +1, +2), and the command was to become effective from February 1 of the same year. Despite the target of the command is still only for the occupying force itself, further publication have described the time as the standard time for the occupied area and thus it can probably be seen as such. ** Area that use meridian of 135E: Palau and Yap civil administration area (Southern Islands Western Standard Time) ** Area that use meridian of 150E: Truk(Chuuk) and Saipan civil administration area (Southern Islands Central Standard Time) ** Area that use meridian of 165E: Ponape(Pohnpei) and Jaluit civil administration area. (Southern Islands Eastern Standard Time) ** In the next few years Japanese occupation of those islands have been formalized via League of Nation Mandate (South Pacific Mandate) and formal governance structure have been established, these district [become subprefectures] and timezone classification have been inherited as standard time of the area. ** Saipan subprefecture include Mariana islands (exclude Guam which was occupied by America at the time), Palau and Yap subprefecture rule the Western Caroline Islands with 137E longitude as border, Truk and Ponape subprefecture rule the Eastern Caroline Islands with 154E as border, Ponape subprefecture also rule part of Marshall Islands to the west of 164E starting from (1918?) and Jalnuit subprefecture rule the rest of the Marshall Islands. * And then in year 1937, an announcement was made to change the time in the area into 2 timezones: ** Area that use meridian of 135E: area administered by Palau, Yap and Saipan subprefecture (Southern Islands Western Standard Time) ** Area that use meridian of 150E: area administered by Truk(Chuuk), Ponape(Pohnpei) and Jaluit subprefecture (Southern Islands Eastern Standard Time) * Another announcement issued in 1941 say that on April 1 that year, standard time of the Southern Islands would be changed to use the meridian of 135E (GMT+9), and thus abolishing timezone different within the area. * Then Pacific theater of WWII started and Japan slowly lose control on the island. The webpage I linked above contain no information during this period of time. Guam Island was briefly annexed by Japan during this period of time [year 1941-1944], however there are no detailed information about what time it use during that period. It would probably be reasonable to assume Guam use GMT+9 during that period of time like the surrounding area. * After the end of WWII, in 1946 February, a document written by the (former?) Japanese military personnel describe there are 3 hours time different between Caroline islands time/Wake island time and the Chungking time, which would mean the time being used there at the time was GMT+10. * After that, the area become Trust Territories of the Pacific Islands under American administration from year 1947. The site listed some American/International books/maps/publications about time used in those area during this period of time but they doesn't seems to be reliable information so it would be the best if someone know where can more reliable information can be found. * The site also pointed out that currently tzdata say Pacific/Kwajalein switched from GMT+11 to GMT-12 in 1969 October without explanation, however an 1993 article from NYT say it synchorized its day with US mainland about 40 years ago and thus the switch should occur at around 1950s instead. * Also, the NYT article linked in that website say the jump from GMT-12 to GMT+12 in year 1993 skipped Saturday that day, however the comment in tz database from that year say it skipped Friday. That seems to be an inconsistency that should be investigated, and the comment should probably be annotated accordingly if the comment was not accurate ANd then additional note for Bonin Islands: While not part of the Southern Islands, in the period of time during 1952-1968, Bonin Islands were placed under American administration. It would probably be worth investigating whether they're following the Japanese time or the Mariana time or some other time standard at the time. And then for Guam: * Currently tz database say Guam stopped using local mean time at 1901 but a 1902 earthquake report on Guam seems to be using LMT in the report when compares to the time the earthquake recorded on the Philippines (the site note that it take times for earthquake wave to transmit and thus the time different between records in different place would not be identical to the time different) ** The site say Shanks used 1901 end date for LMT time for a number of places around the world, probably using them as placeholder. Maybe those 1901 end date should be nuked from tz database? * A Japanese magazine in 1906 say Guam's time is "1.5 hours earlier than Japan" and "use 145 degree E meridian" which are contradictory to each other as 145E meridian mean GMT+9:40 and that is not 1.5 hours earlier than Japan. * And then there are some different records about Guam used GMT+9:30 at the time but each of those documents seems to give different transition time for when they give up :30 time different and move to GMT+10. But it most likely occurred before 1927 as a map published by US Navy that year shows Guam as using GMT+10, which appears to be credible as Guam was under US Military administration at the time. * As mentioned above, Guam was invaded by Japan during year 1941-1944. It's unclear about did they shifted the clock to match the surrounding islands during this period of time. * Then in year 1959 there's a daylight saving time act passed for Guam. There is a table on the site that include list an link to time and order for implementation and cancellation of DST at Guam but the implementation time seems to be all over the place according to the list. The last time the DST was implemented in Guam according to the table seems to be 1977 although I am not sure about the completeness of the table. If so then maybe a new zone for CNI would need to be created as it's after 1970 and the DST should be applicable to Guam only?

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Question about the UNTIL fields
by Marcos Passos Nov. 29, 2018

Nov. 29, 2018

Hello everyone, I'm working on a TZDB parser for a PHP project and reading the zic8.txt I came across with the following information: The month, day, and time of day have the same format as the IN, ON, and AT > fields of a rule However, I could not find any Zone line in the latest version of the TZDB containing relative dates, such as "lastSun" or "sun>=5", but only absolute dates. Is this a mistake in the documentation or are relative dates actually supported on those lines but have never been used? - Marcos

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Stop
by The OneCloud Nov. 29, 2018

Nov. 29, 2018

Stop

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