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tz changes linux debian caused sync diff
by John D. Hendrickson and Sara Darnell March 26, 2014

March 26, 2014

hello first background the Question is last i just spent an hour trying to edit America/New_York only to find US had been changed my two hosts disagreed by 1 hr and daylight savings time but not UTC prev US section used "max". apparently (i dont' have all tz revisions) someone change the last US rule this changes assumptions made in all rules of states using US in their Rules meaning one host assumes NY follows US from (19xx) forward, so does the other: but since US chaned they are an hour off -------------------------------------- Question: why was that a good idea ? and what if new Rules file becomes incompat with my libc and i cannot zic/compile and load "new localtime assumptions" ?? it seems rediculous however i'm guessing there is a good answer

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Re: [tz] confirmation of historical DST changes in Ukraine
by David Cochrane March 26, 2014

March 26, 2014

Sorry, I did not post this to the correct thread. My apologies. David Cochrane ----- Original Message ----- From: "David Cochrane" <davidc(a)astrosoftware.com> To: <tz(a)iana.org> Sent: Wednesday, March 26, 2014 8:35 AM Subject: confirmation of historical DST changes in Ukraine > Gary How wrote: > >> The question for tz >> database is whether the switch to Urumqi Time in Xinjiang is on 1975 >> (when >> it was first announced) or 1986 (when it was more commonly implemented). > > Just a confirmation that Urumqi time was implemented in Urumqi on 1 Feb > 1986: > > http://content.time.com/time/magazine/article/0,9171,960684,00.html > > I did not subscribe or log in to the site but from the part of the article > on this page, it suggests that the article will confirm the Feb 1, 1986 > date > for the date when people began observing Urumqi time (even if a regulation > had already been passed in 1975). > > I am fairly new to this group. I also have some confirmation of the DST > changes in the Ukraine from newspaper articles in Russian that confirm > that the laws passed were put into practice. I can send these as well if > this is useful information. I can also gradually submit other historical > research information for countries that I have which I believe is not in > the TZ database files. > > David Cochrane > > > ----- Original Message ----- > From: "Gary How" <hytar(a)outlook.com> > To: <tz(a)iana.org> > Sent: Monday, March 24, 2014 8:26 AM > Subject: Re: [tz] China time zones 1949 - 1980: appeal to speakers > ofMandarin > > >> Alois Treindl <alois <at> astro.ch> writes: >> >>> >>> This seems to be a relevant source: >>> Guo, Qingsheng (2003) "Beijing Time at the Beginning of PRC", China >>> Historical Materials of Science and Technology 24(1) >>> >> >> Hi Alois and Paul, I purchased the journal article (finally after days of >> figuring out which service allows payment from outside China). From the >> points Alois raised in his recent email, I try to clarify by using that >> article, quoting/paraphrasing its English translation. >> >>> >>> Various sources claim that this unified country-wide timezone was >>> already introduced in 1949 or early 1950 >>> >> >> This particular source says the first meeting of the Chinese People's >> Political Consultative Conference passed the resolution of "making >> Beiping >> the capital, changing Beiping to Beijing." That was 27 September 1949. On >> the same day, Beiping Xinhua Radio was renamed with Beijing at the >> beginning. The next day, that station started using Beijing in its >> timekeeping call. The earliest written instance of "Beijing Time" found >> by >> the author was on 7 October 1949, through a newspaper posting from Xi'an >> People's Radio. That said, the author inferred that Beijing Time was >> established on 27 September 1949. >> >>> >>> It seems to me that the only source claiming the continuation of 5 time >>> zones for China is the International Atlas by Shanks and Pottenger. The >>> overall work of these authors is extremely valuable, but they do not >>> give a source for their China information. >>> >>> Paul Eckert says in tz/asia file: >>> # From Paul Eggert (2008-06-30): >>> # There seems to be a good chance China switched to a single time zone >>> in 1949 >>> # rather than in 1980 as Shanks & Pottenger have it, but we don't have a >>> # reliable documentary source saying so yet, so for now we still go with >>> # Shanks & Pottenger. >>> >> >> For time zones in the rest of China after that, Qing-sheng Guo has >> another >> journal article in 2001 that discussed these in detail, entitled "A Study >> on >> the Standard Time Changes for the Past 100 Years in China," from China >> Historical Materials of Science and Technology 22(3). >> >> Earlier I mentioned Xi'an radio station referencing Beijing Time. Another >> written source for this was from the Xi'an People's Government dated 2 >> November 1949, announcing to stop using Longshu Time (aka Kansu-Szechuan >> Time, GMT+7) and change to Beijing Time from 3 November 1949 onwards. >> >>> 10/16/2010 by Jonathan.Hassid <at> uts.edu.au who writes: >>> "The government in Chengdu (capital of Sichuan province) announced the >>> switch (from "Shulong" (Gansu/Sichuan) time) to Beijing time on 27 Dec. >>> 1949. >> >> As for Chengdu, the date 27 December 1949 is stated in the article as >> "being >> liberated" during the Communist Revolution. The switch to Beijing Time >> "was >> announced ten days or so after that." The author referenced a notice from >> the Chengdu Garrison Command dated 6 January 1950, to request citizens to >> adjust their watches through daily sirens at noon Beijing Time. For most >> other parts of China, they "have used standard time of 120° longitude >> around >> the year 1950 to 1953." He dubbed it the "chaotic period", since no >> government agency announced and enforced this rule of time, instead the >> cities synced to the unified time at their pace. >> >> In the 2003 article, Guo obtained two independent sources that verified >> the >> Beijing Time of 1949 was using apparent/true solar time (GMT+7:56) and >> not >> mean solar time (7:46) or standard time of 120° longitude (8:00). >> However, >> he had doubts about that, since he thought apparent solar time is a step >> back to time measurements in the early 20th century, and standard time >> signals can be obtained easily from overseas stations at the time. The >> 1954 >> Chinese Astronomical Almanac mentioned that "except Xinjiang and Tibet, >> the >> whole country uses standard time of 120° longitude." He has yet to find >> out >> exactly when did Beijing Time switch back to GMT+8 between 1949 and 1954 >> in >> the article. I will try to look for later articles that reference this >> work. >> >> For Tibet, the standard time of 90° longitude was used prior to March >> 1959, >> also known as Lhasa Time. After the Tibetan Uprising that month and the >> Panchen Lama took over, the author surmised that the transition from >> Lhasa >> Time to Beijing Time happened at the second half of 1959. He tried to >> look >> for "first-hand accounts" on this, but found none so far. On the other >> hand, >> Guo said time zone changes for Xinjiang is relatively well documented. >> >> The Revolutionary Committee of Xinjiang and Xinjiang military notified on >> 9 >> June 1969, that starting from 1 July 1969, Beijing Time would be put into >> effect for the entire Xinjiang province. On 7 April 1975, the same >> committee >> put out a notice to be enforced on 1 May, that except military, >> rail-road, >> civil aviation, postal and telecommunication services, the schedules for >> government, factories, mines, businesses and schools would use Urumqi >> Time. >> Due to poor implementation of this notice, they again informed on 10 June >> 1977 that "schedules for work, meeting etc. should only use Urumqi Time >> for >> the whole province." >> >> In the end, the Xinjiang People's Government decided that starting 1 >> February 1986, the entire province would use Urumqi Time. Whenever >> Beijing >> Time is used, they should be stated explicitly. According to Guo, this >> particular rule is more effectively put into practice. The question for >> tz >> database is whether the switch to Urumqi Time in Xinjiang is on 1975 >> (when >> it was first announced) or 1986 (when it was more commonly implemented). >> >> To conclude, all of China currently is in the UTC+8:00 time zone except >> for >> Xinjiang province, according to the articles. The central Chinese >> government >> still did not made a law to enforce the unified time zone, although it >> was >> widely accepted that China has one official time zone. Whether or not the >> locals all around China follow that standard time, we do not know for >> sure. >> >> The 2001 article by Guo also has details about Chinese time zones from >> the >> 1900s to 1949. We can start a new thread on this if necessary. > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 9596 (20140326) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 9597 (20140326) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > __________ Information from ESET NOD32 Antivirus, version of virus signature database 9597 (20140326) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com

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morocco change in 12 days
by Sebastien WILLEMIJNS March 26, 2014

March 26, 2014

Hello, http://www.afriquinfos.com/articles/2014/3/18/maroc-heure-dete-avancez-tous… http://www.aujourdhui.ma/une/actualite/l-heure-d-ete-a-compter-de-dimanche-… maybe this info is already known...

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Troll in the long term
by Arthur David Olson March 25, 2014

March 25, 2014

An interesting long-term exercise: extend (once again) the zic-produced POSIX-like time zone string format to cover Troll. (Have the in-place extensions been proposed to the POSIX governing body for its standard?) @dashdashado

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Troll and zic warnings
by Arthur David Olson March 25, 2014

March 25, 2014

It may be useful to have zic warn when producing a binary with more than 1200 transition times; one possibility is attached (and appears below with tabs mangled). To make room for the new code, a warning about pre-1998 versions of zic has been removed.-) @dashdashado *** tz2014braw/zic.c 2014-03-20 23:21:43.000000000 -0400 --- tz2014bcooked/zic.c 2014-03-25 10:19:28.470390300 -0400 *************** *** 962,969 **** error(_("time overflow")); return 0; } - if (noise && hh == HOURSPERDAY && mm == 0 && ss == 0) - warning(_("24:00 not handled by pre-1998 versions of zic")); if (noise && (hh > HOURSPERDAY || (hh == HOURSPERDAY && (mm != 0 || ss != 0)))) warning(_("values over 24 hours not handled by pre-2007 versions of zic")); --- 962,967 ---- *************** *** 1503,1508 **** --- 1501,1508 ---- } timecnt = toi; } + if (noise && timecnt > 1200) + warning(_("pre-2014 clients may mishandle more than 1200 transition times")); /* ** Transfer. */

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[tz-announce] 2014b release of tz code and data available
by Paul Eggert March 25, 2014

March 25, 2014

The 2014b release of the tz code and data is available. It reflects the following changes, which were either circulated on the tz mailing list or are relatively minor technical or administrative changes: Changes affecting near-future time stamps Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. (Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and Bengt-Inge Larsson.) This is currently an approximation; a better version will require the zic and localtime fixes mentioned below, and the plan is to wait for a while until at least the zic fixes propagate. Changes affecting code 'zic' and 'localtime' no longer reject locations needing four transitions per year for the forseeable future. (Thanks to Andrew Main (Zefram).) Also, 'zic' avoids some unlikely failures due to integer overflow. Changes affecting build procedure 'make check' now detects Rule lines defined but never used. The NZAQ rules, an instance of this problem, have been removed. Changes affecting commentary and documentation Fix Tuesday/Thursday typo in description of time in Israel. (Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) Microsoft Windows 8.1 doesn't support tz database names. (Thanks to Donald MacQueen.) Instead, the Microsoft Windows Store app library supports them. Add comments about Johnston Island time in the 1960s. (Thanks to Lyle McElhaney.) Morocco's 2014 DST start will be as predicted. (Thanks to Sebastien Willemijns.) Here are links to the release files: ftp://ftp.iana.org/tz/releases/tzcode2014b.tar.gz ftp://ftp.iana.org/tz/releases/tzdata2014b.tar.gz The files are also available via HTTP as follows: http://www.iana.org/time-zones/repository/releases/tzcode2014b.tar.gz http://www.iana.org/time-zones/repository/releases/tzdata2014b.tar.gz Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. As usual, links to the latest release files are here: http://www.iana.org/time-zones/repository/tzcode-latest.tar.gz http://www.iana.org/time-zones/repository/tzdata-latest.tar.gz ftp://ftp.iana.org/tz/tzcode-latest.tar.gz ftp://ftp.iana.org/tz/tzdata-latest.tar.gz This release corresponds to commit ea08a2f6ef6b2cfe07ea2b3c570e59c9d8e9bd61 dated Mon Mar 24 21:28:50 2014 -0700 and tagged '2014b' in the unofficial github repository at <https://github.com/eggert/tz>. Here are the GPG checksums for the release files: -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTMQbFAAoJEO2X6Q5iqn40MmQP/jLFMoyIrHEHptt7gTxOiakP u+U2qhynw/tXQb44I+YgpYw54UPiZ7mGqQ9phGbmjcTsFT6vG9qO61LEMg9Y6nyr wu+qHYyKfqcLednTUFztR3x2aj4HWNVpMENXyoU+ZvVUw/Hd7J2uaNkw3n+zZYqY tZjMAkn7wPLVv2BGQPshkGQB7S5YEVdHcXyeey9mtS1TBCkPadldgSk6afsc7x89 lTiQ5v89dNJPfOqjRbyIBbS6I26XTxOlEQzuHdzWz5p1m1SUqznosEKw5Mnat5qe LNo3HnmwJyXXXrJDsgYja3yH3Ie4Bhs+y1kjJfwrArnQaex9UWmetHEKuJrz5VY1 HZadsNfVoBb4QYyZQiLxr/iqs/ZiTocX6xAdZpHdI5WSoUABfKLTgU67z1UFFVgd qEi335xK3/l6rFAOjwEzqEriugthSWU1SlqGCUAmP6c87gBgFFC+mMW/T1FnmZtn v/ST9L2xmeyS8a1693fnak1fATlTaF2j/JbrhqbhOFTim/k+u6LgXBpSZyuzs80/ gnLjGN5gAD7OhAMkjU1Ty5T3F1cGGev3kGgWX093JXugj4DszwUzzgG/NZniFkQc t+7B56jbxMTdFs+RB0YWfJ34QUbusAkWNprFyftPYMyF9PElKv6ngF+1XVFdq84Z jz7+k6FTz3hkU/Ru2s+4 =+BVZ -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTMQbFAAoJEO2X6Q5iqn40o1gQAKrv5uiwH6nkf+vAG6u3P1e+ RXdP+fC0IDOQoJFYf4i6gv1LPZ4A3uzwU9fZ8Fq4ETmCRr8UZmtRkrVTqNchfobV Kkkn3XlX5IlPqirBVL3/L3wVGybj7kfauhWozJuyvQuQCaF58TqNAqfV7joSZLZt 8CwBYf1cnkuHkybLJjiur+s3nZ3nAhKa/6p1MbMJBMpeAWtAqdOWW3C/LIgvrX5n 292hzn+0CILcsESxai6YOYpb3VwsVOilqdyBCos16Ra/qRwKUqhtUh+N+/0HdjUw E+wPh4n3mDVMSwiVi0yiZSMACU/mQmwI0W0lQAyGRtMjpK32R/VrwHUAZRAt/B8G 0vOeGl5xXjuaPl46agkhBVhpUHX2ATLKmuJAwZ9jPUYkspqmT3ttzArXcfekFpeb xd6jlpQiqENeo8aZRSllTxE2zYJg5k6UvZ+NTMElh1AmRuUhh+kJq3SQnuEv2fqZ qEXuUZmdkMfLt3xF6OMDX1Uel/i6GFRfs+Lr7w6PV1HFVTiqZiOB5a1X3hn0dk8M cJQpwyhEfidZASQsKJADhMpUlon6i2O1jBJwyAWrMaCx38a2L6EX9jLPWyPRHze8 v386Rk319AOWupf/G48pJt/LnYiFw1F1AtOct9cpUBDJFoopGuU8O9D3Z49Carsd CknX8ICVszv7uQpCvwO4 =vlee -----END PGP SIGNATURE----- _______________________________________________ tz-announce mailing list tz-announce(a)iana.org https://mm.icann.org/mailman/listinfo/tz-announce

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Macao vs Macau in tzdata2014a/iso3166.tab
by Tomas Klacko March 23, 2014

March 23, 2014

Hi, the tzdata2014a/iso3166.tab lists "MO Macau". It used to be "MO Macao", for instance in tzdata2013d. Looking at: http://www.iso.org/iso/home/standards/country_codes/updates_on_iso_3166.htm it shows "MO Macao" (via the OBP link on page 14). I would like to check, is the "MO Macau" entry in tzdata2014a/iso3166.tab correct? Thank you, Tomas

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Time zone in Troll station
by Bengt-Inge Larsson March 21, 2014

March 21, 2014

Hello IANA! I have noticed that a number of research stations in Antarctica are listed in the tz database, but none in the UTC-1 to UTC+1 range, even if there should be such stations. One such station is the Troll station, which is operated year-around and belongs to Norway. I had a mail conversation with the responsible authority, the Norwegian Polar Institute, about which time zone the Troll station actually uses. The Troll station station officially uses UTC+0. During the dark season March-October, when no air or overland travel is done, it uses Norwegian summertime UTC+2 to simplify communication. So I suggest you add a new zone called Antarctica/Troll You may confirm this through Paul-Inge Flakstad at the Norwegian Polar Institute ( flakstad(a)npolar.no ) Yours Sincerely Bengt-Inge Larsson Sweden From: Paul-Inge Flakstad Sent: Monday, February 03, 2014 12:49 PM To: Bengt-Inge Larsson Cc: Nettredaktør Subject: RE: Time zone in Troll station Hi again Bengt-Inge, I can now confirm that Troll is indeed at UTC/GMT 0. Furthermore - should it be of interest to you - our overwintering team follow Norwegian time (including summer time) during the period they are alone at Troll (March-October). This practice is in place simply to make communication with the head office in Norway more convenient. Thank you for asking us about this. Questions like this and feedback in general are important factors in identifying weak spots in our information channels. In this case, we will update our website with more correct information about the Troll station. Best regards, Paul-Inge Flakstad From: Paul-Inge Flakstad Sent: 3. februar 2014 11:04 To: 'Bengt-Inge Larsson' Cc: Nettredaktør Subject: RE: Time zone in Troll station Hi again Bengt, I see now that my initial reply might have been misleading. Our website page about Troll (where I pulled the info from) states that "Troll is 2 hours after Norwegian time". With Norway in GMT +1, this would implicitly place Troll in GMT -1. However, I believe this is wrong, and that you are correct; Several reliable(ish) sources place Troll in GMT 0, and I assume they base this on geographical coordinates. This also fits nicely into the "2 hours behind"-info on our website, provided one is comparing to Norwegian summer time. I have sent an e-mail to our Antarctica department, asking for verification, and will come back to you with a definite answer as soon as I receive their reply. Best regards, Paul-Inge Flakstad From: Bengt-Inge Larsson [mailto:bengt-inge@tele2.se] Sent: 31. januar 2014 17:33 To: Paul-Inge Flakstad Subject: Re: Time zone in Troll station That has to be 2 hours behind Norwegian Summer time, because I see that the clock on the web camera photos are one hour behind the Central European Winter time. And some other source, unchecked reliability, says there is Greenwich Time in the Troll area. Or is it ? Bengt-Inge Larsson From: Paul-Inge Flakstad Sent: Wednesday, January 29, 2014 10:34 PM To: Nettredaktør ; Bengt-Inge Larsson Subject: SV: Time zone in Troll station Hi Bengt, Troll is 2 hours behind Norwegian time. Best regards,Paul-Inge FlakstadWeb developer, Norwegian Polar Instituteflakstad(a)npolar.no Bengt-Inge Larsson <bengt-inge(a)tele2.se>: Hello! Which time zone is kept at the Troll research station in Antarctica (what are the clocks there set at)? Or what is the time difference to Norway ? I ask since the time zone database used for computers contains some stations in Antarctica, only belonging to English speaking countries, USA; UK and Australia. But not Troll, and it seems that Troll is in some other time zone, since it is not located near those listed bases. Bengt Larsson Göteborg Sweden

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[PATCH] * zic.c (growalloc): Fix typos in size calculation and diagnostic.
by Paul Eggert March 21, 2014

March 21, 2014

--- zic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/zic.c b/zic.c index 09fda7a..34b3dc1 100644 --- a/zic.c +++ b/zic.c @@ -400,8 +400,8 @@ growalloc(void *ptr, size_t itemsize, int nitems, int *nitems_alloc) return ptr; else { int amax = INT_MAX < SIZE_MAX ? INT_MAX : SIZE_MAX; - if ((amax - 1) / 2 < *nitems_alloc) - memory_exhausted("int ooverflow"); + if ((amax - 1) / 3 * 2 < *nitems_alloc) + memory_exhausted("int overflow"); *nitems_alloc = *nitems_alloc + (*nitems_alloc >> 1) + 1; return erealloc(ptr, size_product(*nitems_alloc, itemsize)); } -- 1.8.5.3

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Crimea to switch to Moscow Time as of March 30, 2014
by Alexander Krivenyshev March 18, 2014

March 18, 2014

According to the news, Republic of Crimea (Simferopol, Sevastopol, Kerch, Yalta, Yevpatoriya) will change its clock 2 hours forward (to the Moscow time) on March 30, 2014. Crimea to switch to Moscow Time as of March 30 http://voiceofrussia.com/news/2014_03_17/Crimea-to-switch-to-Moscow-Time-as- of-March-30-8334/ or http://www.worldtimezone.com/dst_news/dst_news_crimea01.html Alexander Krivenyshev, http://www.worldtimezone.com

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