July 2008 - tz - lists.iana.org

proposed tz change for Latvia, Lithuania
by Paul Eggert May 25, 2015

May 25, 2015

It's March Madness time for daylight-saving rule changes. Here's a proposed change to the tz database to keep up with the latest political development, which affects time stamps starting March 29: * Latvia and Lithuania will not observe DST, starting this year. Thanks to Andrei Ivanov for this info. =================================================================== RCS file: RCS/europe,v retrieving revision 2000.3 retrieving revision 2000.3.0.1 diff -pu -r2000.3 -r2000.3.0.1 --- europe 2000/03/04 15:31:08 2000.3 +++ europe 2000/03/08 17:48:59 2000.3.0.1 @@ -1135,6 +1135,12 @@ Link Europe/Rome Europe/San_Marino # 1997-01-21 on transition to Summer time ... established the same order of # daylight savings time settings as in the States of the European Union. +# From Andrei Ivanov (2000-03-06): +# This year Latvia will not switch to Daylight Savings Time (as specified in +# <a href="http://www.lv-laiks.lv/wwwraksti/2000/071072/vd4.htm"> +# The Regulations of the Cabinet of Ministers of the Rep. of Latvia of +# 29-Feb-2000 (#79)</a>, in Latvian for subscribers only). + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Latvia 1989 1996 - Mar lastSun 2:00s 1:00 S Rule Latvia 1989 1996 - Sep lastSun 2:00s 0 - @@ -1151,7 +1157,8 @@ Zone Europe/Riga 1:36:24 - LMT 1880 3:00 Russia MSK/MSD 1989 Mar lastSun 2:00s 2:00 1:00 EEST 1989 Sep lastSun 2:00s 2:00 Latvia EE%sT 1997 Jan 21 - 2:00 EU EE%sT + 2:00 EU EE%sT 2000 Feb 29 + 2:00 - EET # Liechtenstein # Zone NAME GMTOFF RULES FORMAT [UNTIL] @@ -1178,6 +1185,11 @@ Zone Europe/Vaduz 0:38:04 - LMT 1894 Jun # motion to give up shifting to summer time in spring, as it was # already done by Estonia. +# From Andrei Ivanov (2000-03-06): +# I've heard that Ministers of three Baltic countries on their summit +# somewhere in February decided not to switch to summer time starting from +# this spring. + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Vilnius 1:41:16 - LMT 1880 1:24:00 - WMT 1917 # Warsaw Mean Time @@ -1192,7 +1204,8 @@ Zone Europe/Vilnius 1:41:16 - LMT 1880 2:00 C-Eur EE%sT 1998 2:00 - EET 1998 Mar 29 1:00u 1:00 EU CE%sT 1999 Oct 31 1:00u - 2:00 EU EE%sT + 2:00 EU EE%sT 2000 Feb + 2:00 - EET # Luxembourg # Whitman disagrees with most of these dates in minor ways; go with Shanks.

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Tomsk wrong timezone
by Jesper Norgaard Welen Feb. 18, 2011

Feb. 18, 2011

A quote from the 'europe' file: # Novosibirskaya oblast'. Zone Asia/Novosibirsk 5:31:40 - LMT 1919 Dec 14 6:00 6:00 - NOVT 1930 Jun 21 # Novosibirsk Time 7:00 Russia NOV%sT 1991 Mar 31 2:00s 6:00 Russia NOV%sT 1992 Jan 19 2:00s 7:00 Russia NOV%sT 1993 May 23 # say Shanks & P. 6:00 Russia NOV%sT # # From Oscar van Vlijmen (2001-08-25): [This region consists of] # Kemerovskaya oblast', Krasnoyarskij kraj, # Tajmyrskij (Dolgano-Nenetskij) avtonomnyj okrug, Tomskaya oblast', # Respublika Tuva, Respublika Khakasiya, Evenkijskij avtonomnyj okrug. Zone Asia/Krasnoyarsk 6:11:20 - LMT 1920 Jan 6 6:00 - KRAT 1930 Jun 21 # Krasnoyarsk Time 7:00 Russia KRA%sT 1991 Mar 31 2:00s 6:00 Russia KRA%sT 1992 Jan 19 2:00s 7:00 Russia KRA%sT In fact, it seems that Tomsk city and Tomskaya oblast' is part of the Novosibirsk timezone, see http://en.wikipedia.org/wiki/Tomskaya_Oblast%27%2C_Russia and http://www.admin.tomsk.ru/1024 ... the latter, if you don't understand russian, look at the time under the green horse. I don't know if this simply means that Tomskaya oblast' changed timezone since 2001, which is a possibility, that would then require a new timezone. Regards, - Jesper Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Project Leader (Líder de Proyecto) Software CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (55) 58-04-20-04 ext. 1374 Fax: +52 (55) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 Download the shareware program World Time Explorer, I made: http://www.worldtimeexplorer.com/index.html

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Chinese timezones 1970
by Jesper Norgaard Welen Sept. 14, 2008

Sept. 14, 2008

I have investigated the timezones around 1970 on the http://www.astro.com/atlas site, and here are the results. I am attaching a GIF file of the map I have built based on this information. The red borders are the modern-time administrative borders, while the green lines are the timezone borders I have determined, note that some of them are partially hidden behind the red lines. There are no big surprises. Most timezones follow modern-day administrative boundaries, with the exceptions being Xinjiang, Xizang (Tibet), Qinghai, Gansu, Nei Mongol (Inner Mongolia) and Guangdong. There was an exception in Heliongjiang region on GMT+8.5 where the northern-most county Mohe is on GMT+8. A few other exceptions were two counties on the Sichuan side of the Xizang - Sichuan border, counties Dege and Baiyu which lies on the Sichuan side and are therefore supposed to be GMT+7, Xizang region being GMT+6, but Dege county is GMT+8 according to astro.com while Baiyu county is GMT+6 (could be true), for the moment I am assuming that those two counties are mistakes in the astro.com data. The biggest surprise was that region Guangdong were dived in 3 timezones, a south/west part on GMT+6 (counties Xuwen, Haikang, Suixi, Lianjiang, Zhanjiang, Wuchuan, Huazhou, Gaozhou, Maoming, Dianbai, Xinyi) a central part on GMT+7 (counties Yangchun, Yangjiang, Taishan, Kaiping, Xinxing, Luoding, Yu'nan, Yunfu, Taishan, Deqing and Enping) and a north/east part on GMT+8 with the rest of the counties. Zone Asia/Harbin on GMT+8.5: regions Heilongjiang (minus Mohe) and Jilin. Zone Asia/Shanghai on GMT+8: regions east Nei Mongol, Liaoning, Hebei + Beijing, Shanxi, Shandong, Henan, Jiangsu, Anhui, Shanghai, Zhejiang, Hubei, Hunan, Jiangxi, Fujian, north/east Guangdong and Mohe county of Heilongjiang. Zone Asia/Chongqing on GMT+7: regions west Nei Mongol, Ningxia, Shaanxi, east Gansu, west Qinghai, Sichuan, Guizhou, Guangxi, Yunnan, Hainan island and the central part of Guangdong province. Zone Asia/Urumqi on GMT+6: regions east Xinjiang, west Gansu (counties Dunhuang, Aksay, Anxi, Subei), west Qinghai, east Xizang (Tibet) and east Guangdong. Zone Asia/Kashgar on GMT+5: regions west Xinjiang, west Xizang. Regards, - Jesper Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Project Leader (Líder de Proyecto) Software CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (55) 58-04-20-04 ext. 1374 Fax: +52 (55) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 Download the shareware program World Time Explorer, I made: http://www.worldtimeexplorer.com/index.html

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tzcode2008e.tar.gz and tzdata2008e.tar.gz
by Olson, Arthur David (NIH/NCI) [E] July 28, 2008

July 28, 2008

The files... ftp://elsie.nci.nih.gov/pub/tzcode2008e.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2008e.tar.gz ...are now available; these reflect the changes circulated last week on the time zone mailing list by yours truly and Jesper Norgaard Welen. If the message sent to the list last week is correct; there may be a Mauritius update next month. --ado

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Russia May Discontinue DST in 2009- new draft proposal introduced.
by Alexander Krivenyshev July 26, 2008

July 26, 2008

A draft proposal of a new federal law to regulate time calculation within the territory of the Russian Federation has been offered by Sergei Mironov, a member of the Federal Council. Proposed at the legislative level, the draft seeks to determine the order of time calculation, under which the territory of the Russian Federation, during the entire calendar year is set to Standard Time plus 1 hour (current Decree time), without any additional time change (eliminating Daylight Saving Time/Summer Time). If approved this would take effect January 1, 2009. A current draft in Russian is available at the following URL: http://www.mironov.ru/council/initiations/11.html. An English translation by Alexander Krivenyshev (edited by Michael Cofield) is available at Worldtimezone.com at the following URL: http://www.worldtimezone.com/dst_news/dst_news_russia02.html Regards, Alexander Krivenyshev, http://www.worldtimezone.com New York, NY

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New DST dates for Mauritius - moved to October
by Steffen Thorsen July 24, 2008

July 24, 2008

According to http://www.lexpress.mu/display_article.php?news_id=111216 (in French), Mauritius will start and end their DST a few days earlier than previously announced (2008-11-01 to 2009-03-31). The new start date is 2008-10-26 at 02:00 and the new end date is 2009-03-27 (no time given, but it is probably at either 2 or 3 wall clock time). A little strange though, since the article says that they moved the date to align itself with Europe and USA which also change time on that date, but that means they have not paid attention to what happened in USA/Canada last year (DST ends first Sunday in November). I also wonder why that they end on a Friday, instead of aligning with Europe which changes two days later. Best regards, Steffen / timeanddate.com

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C-Eur related change suggestions for version 2008e
by Jesper Norgaard Welen July 20, 2008

July 20, 2008

In a previous email Robbin Kawabata has shown unintended changes for the tz database relating to the change for the C-Eur Rule in 2008d. Here are the relevant portions of the tz database together with a few suggestions to mend it (with + and - as the first letter of the relevant lines): Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S # Whitman gives 1944 Oct 7; go with Shanks & Pottenger. Rule C-Eur 1944 only - Oct 2 2:00s 0 - Rule C-Eur 1945 only - Sep 16 2:00 0 - ... # These are for backward compatibility with older versions. ... # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone WET 0:00 EU WE%sT Zone CET 1:00 C-Eur CE%sT Zone MET 1:00 C-Eur ME%sT ... Zone Europe/Sofia 1:33:16 - LMT 1880 1:56:56 - IMT 1894 Nov 30 # Istanbul MT? 2:00 - EET 1942 Nov 2 3 :00 - 1:00 C-Eur CE%sT 1945 Apr 2 3:00 + 1:00 C-Eur CE%sT 1945 + 1:00 - CET 1945 Apr 2 3:00 2:00 - EET 1979 Mar 31 23:00 ... Zone Europe/Budapest 1:16:20 - LMT 1890 Oct 1:00 C-Eur CE%sT 1918 1:00 Hungary CE%sT 1941 Apr 6 2:00 - 1:00 C-Eur CE%sT 1945 May 1 23:00 + 1:00 C-Eur CE%sT 1945 1:00 Hungary CE%sT 1980 Sep 28 2:00s ... Zone Europe/Belgrade 1:22:00 - LMT 1884 1:00 - CET 1941 Apr 18 23:00 - 1:00 C-Eur CE%sT 1945 May 8 2:00s + 1:00 C-Eur CE%sT 1945 + 1:00 - CET 1945 May 8 2:00s 1:00 1:00 CEST 1945 Sep 16 2:00s The problem arose because the C-Eur rules had no DST for 1945, making other timezones free to use it without effects for 1945. However this meant that Zone CET and Zone MET did not have DST for 1945, which is not very adequate. I agree with the action of adding DST for C-Eur for 1945, but that means that other timezones using C-Eur must be changed to return status quo. As far as I can see only Europe/Sofia, Europe/Budapest and Europe/Belgrade are affected, though of course Europe/Skopje and other timezones linking to Europe/Belgrade will be equally affected. My suggestion for Europe/Sofia and Europe/Belgrade are to stop using C-Eur from 1945 since the timezone abbreviation (CET) will be the same, and then only start CEST from the previous cutoff dates. For Europe/Budapest the answer is easier since Hungary rule already has the DST start time of May 1, 1945 at 23:00 encoded, so the Hungary rule can simply be used insted of C-Eur since 1945. I don't have access to a zic compiler to see if the desired results crop out, so I will leave that to people who can check it. Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Project Leader (Líder de Proyecto) Software CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (55) 58-04-20-04 ext. 1374 Fax: +52 (55) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 Download the shareware program World Time Explorer, I made: HYPERLINK "http://www.worldtimeexplorer.com/index.html"http://www.worldtimeexplorer.co m/index.html No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 270.5.3/1563 - Release Date: 2008-07-20 12:59

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proposed time zone package changes
by Arthur David Olson July 20, 2008

July 20, 2008

Proposed time zone packages appear below. These include: * changes to "Makefile" to allow withdrawal of logwtmp.c * data file URL fixes from Halasz Sandor Viktor * a fix for a typo in the "europe" file from Jesper Norgaard Welen (only affects 1945 time stamps) * changes for Mauritius in the "africa" file based on messages from Steffen Thorsen and Alex Krivenyshev * changes to the "leapseconds" file to reflect the IERS announcement of a positive leap second at the end of 2008 * changes (previously circulated) to the "tz-link.htm" file from Paul Eggert. If there's no negative feedback, I'll make tzcode2008e.tar.gz and tzdata2008e.tar.gz available on 2008-07-28. --ado diff -r -c old/Makefile new/Makefile *** old/Makefile Wed Mar 5 11:58:23 2008 --- new/Makefile Sun Jul 20 14:23:27 2008 *************** *** 1,4 **** ! # @(#)Makefile 8.6 # Change the line below for your time zone (after finding the zone you want in # the time zone files, or adding it to a time zone file). --- 1,4 ---- ! # @(#)Makefile 8.7 # Change the line below for your time zone (after finding the zone you want in # the time zone files, or adding it to a time zone file). *************** *** 246,258 **** TZCOBJS= zic.o localtime.o asctime.o scheck.o ialloc.o TZDSRCS= zdump.c localtime.c ialloc.c TZDOBJS= zdump.o localtime.o ialloc.o ! DATESRCS= date.c localtime.c logwtmp.c strftime.c asctime.c ! DATEOBJS= date.o localtime.o logwtmp.o strftime.o asctime.o LIBSRCS= localtime.c asctime.c difftime.c LIBOBJS= localtime.o asctime.o difftime.o HEADERS= tzfile.h private.h NONLIBSRCS= zic.c zdump.c scheck.c ialloc.c ! NEWUCBSRCS= date.c logwtmp.c strftime.c SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) tzselect.ksh MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \ tzfile.5 tzselect.8 zic.8 zdump.8 --- 246,258 ---- TZCOBJS= zic.o localtime.o asctime.o scheck.o ialloc.o TZDSRCS= zdump.c localtime.c ialloc.c TZDOBJS= zdump.o localtime.o ialloc.o ! DATESRCS= date.c localtime.c strftime.c asctime.c ! DATEOBJS= date.o localtime.o strftime.o asctime.o LIBSRCS= localtime.c asctime.c difftime.c LIBOBJS= localtime.o asctime.o difftime.o HEADERS= tzfile.h private.h NONLIBSRCS= zic.c zdump.c scheck.c ialloc.c ! NEWUCBSRCS= date.c strftime.c SOURCES= $(HEADERS) $(LIBSRCS) $(NONLIBSRCS) $(NEWUCBSRCS) tzselect.ksh MANS= newctime.3 newstrftime.3 newtzset.3 time2posix.3 \ tzfile.5 tzselect.8 zic.8 zdump.8 *************** *** 348,362 **** if [ -x /usr/ucb/ranlib -o -x /usr/bin/ranlib ] ; \ then ranlib $@ ; fi - # We use the system's logwtmp in preference to ours if available. - date: $(DATEOBJS) - ar r ,lib.a logwtmp.o - if [ -x /usr/ucb/ranlib -o -x /usr/bin/ranlib ] ; \ - then ranlib ,lib.a ; fi $(CC) $(CFLAGS) date.o localtime.o asctime.o strftime.o \ ! $(LDLIBS) -lc ,lib.a -o $@ ! rm -f ,lib.a tzselect: tzselect.ksh sed \ --- 348,356 ---- if [ -x /usr/ucb/ranlib -o -x /usr/bin/ranlib ] ; \ then ranlib $@ ; fi date: $(DATEOBJS) $(CC) $(CFLAGS) date.o localtime.o asctime.o strftime.o \ ! $(LDLIBS) -lc -o $@ tzselect: tzselect.ksh sed \ diff -r -c old/africa new/africa *** old/africa Mon Jul 7 09:45:31 2008 --- new/africa Sun Jul 20 15:30:59 2008 *************** *** 1,4 **** ! # @(#)africa 8.13 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)africa 8.15 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 394,416 **** # It seems that Mauritius observed daylight saving time from 1982-10-10 to # 1983-03-20 as well, but that was not successful.... # http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html ! # # From Alex Krivenyshev (2008-06-25): # http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b241… ! # # From Arthur David Olson (2008-06-30): # The www.timeanddate.com article cited by Steffen Thorsen notes that "A # final decision has yet to be made on the times that daylight saving # would begin and end on these dates." As a place holder, use midnight. ! # # From Paul Eggert (2008-06-30): # Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mauritius 1982 only - Oct 10 0:00 1:00 S Rule Mauritius 1983 only - Mar 21 0:00 0 - ! Rule Mauritius 2008 only - Nov 1 0:00 1:00 S ! Rule Mauritius 2009 only - Apr 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis 4:00 Mauritius MU%sT # Mauritius Time --- 394,432 ---- # It seems that Mauritius observed daylight saving time from 1982-10-10 to # 1983-03-20 as well, but that was not successful.... # http://www.timeanddate.com/news/time/mauritius-daylight-saving-time.html ! # From Alex Krivenyshev (2008-06-25): # http://economicdevelopment.gov.mu/portal/site/Mainhomepage/menuitem.a42b241… ! # From Arthur David Olson (2008-06-30): # The www.timeanddate.com article cited by Steffen Thorsen notes that "A # final decision has yet to be made on the times that daylight saving # would begin and end on these dates." As a place holder, use midnight. ! # From Paul Eggert (2008-06-30): # Follow Thorsen on DST in 1982/1983, instead of Shanks & Pottenger. + # From Alex Krivenyshev (2008-07-11): + # Seems that English language article "The revival of daylight saving + # time: Energy conservation?"-# No. 16578 (07/11/2008) was originally + # published on Monday, June 30, 2008... + # + # I guess that article in French "Le gouvernement avance l'introduction + # de l'heure d'ete" stating that DST in Mauritius starting on October 26 + # and ending on March 27, 2009 is the most recent one. + # <a href="http://www.lexpress.mu/display_article.php?news_id=111216"> + # http://www.lexpress.mu/display_article.php?news_id=111216 + # </a> + # or + # <a href="http://www.worldtimezone.com/dst_news/dst_news_mauritius02.html"> + # http://www.worldtimezone.com/dst_news/dst_news_mauritius02.html + # </a> + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Mauritius 1982 only - Oct 10 0:00 1:00 S Rule Mauritius 1983 only - Mar 21 0:00 0 - ! Rule Mauritius 2008 only - Oct 26 0:00 1:00 S ! Rule Mauritius 2009 only - Mar 27 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis 4:00 Mauritius MU%sT # Mauritius Time *************** *** 475,481 **** # published on the web. # # It's also confirmed here: ! # <a href="http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm "> # http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm # </a> # on a government portal as being between june 1st and sept 27th (not yet --- 491,497 ---- # published on the web. # # It's also confirmed here: ! # <a href="http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm"> # http://www.maroc.ma/NR/exeres/FACF141F-D910-44B0-B7FA-6E03733425D1.htm # </a> # on a government portal as being between june 1st and sept 27th (not yet diff -r -c old/asia new/asia *** old/asia Mon Jul 7 09:45:31 2008 --- new/asia Sun Jul 20 15:09:44 2008 *************** *** 1,4 **** ! # @(#)asia 8.21 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)asia 8.22 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 1416,1422 **** # From Steffen Thorsen (2008-03-31): # eznis airways, which operates several domestic flights, has a flight # schedule here: ! # <a href="http://www.eznis.com/Container.jsp?id=112" # http://www.eznis.com/Container.jsp?id=112 # </a> # (click the English flag for English) --- 1416,1422 ---- # From Steffen Thorsen (2008-03-31): # eznis airways, which operates several domestic flights, has a flight # schedule here: ! # <a href="http://www.eznis.com/Container.jsp?id=112"> # http://www.eznis.com/Container.jsp?id=112 # </a> # (click the English flag for English) diff -r -c old/europe new/europe *** old/europe Mon Jul 7 09:45:31 2008 --- new/europe Sun Jul 20 15:20:42 2008 *************** *** 1,4 **** ! # @(#)europe 8.14 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)europe 8.16 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 483,489 **** Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S # Whitman gives 1944 Oct 7; go with Shanks & Pottenger. Rule C-Eur 1944 only - Oct 2 2:00s 0 - ! Rule C-Eur 1945 only - Sep 16 2:00 0 - Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S Rule C-Eur 1977 only - Sep lastSun 2:00s 0 - Rule C-Eur 1978 only - Oct 1 2:00s 0 - --- 483,527 ---- Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S # Whitman gives 1944 Oct 7; go with Shanks & Pottenger. Rule C-Eur 1944 only - Oct 2 2:00s 0 - ! # From Jesper Norgaard Welen (2008-07-13): ! # ! # I found what is probably a typo of 2:00 which should perhaps be 2:00s ! # in the C-Eur rule from tz database version 2008d (this part was ! # corrected in version 2008d). The circumstancial evidence is simply the ! # tz database itself, as seen below: ! # ! # Zone Europe/Paris 0:09:21 - LMT 1891 Mar 15 0:01 ! # 0:00 France WE%sT 1945 Sep 16 3:00 ! # ! # Zone Europe/Monaco 0:29:32 - LMT 1891 Mar 15 ! # 0:00 France WE%sT 1945 Sep 16 3:00 ! # ! # Zone Europe/Belgrade 1:22:00 - LMT 1884 ! # 1:00 1:00 CEST 1945 Sep 16 2:00s ! # ! # Rule France 1945 only - Sep 16 3:00 0 - ! # Rule Belgium 1945 only - Sep 16 2:00s 0 - ! # Rule Neth 1945 only - Sep 16 2:00s 0 - ! # ! # The rule line to be changed is: ! # ! # Rule C-Eur 1945 only - Sep 16 2:00 0 - ! # ! # It seems that Paris, Monaco, Rule France, Rule Belgium all agree on ! # 2:00 standard time, e.g. 3:00 local time. However there are no ! # countries that use C-Eur rules in September 1945, so the only items ! # affected are apparently these ficticious zones that translates acronyms ! # CET and MET: ! # ! # Zone CET 1:00 C-Eur CE%sT ! # Zone MET 1:00 C-Eur ME%sT ! # ! # It this is right then the corrected version would look like: ! # ! # Rule C-Eur 1945 only - Sep 16 2:00s 0 - ! # ! # A small step for mankind though 8-) ! Rule C-Eur 1945 only - Sep 16 2:00s 0 - Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S Rule C-Eur 1977 only - Sep lastSun 2:00s 0 - Rule C-Eur 1978 only - Oct 1 2:00s 0 - *************** *** 1094,1101 **** # [See tz-link.htm for the URL.] # From Joerg Schilling (2002-10-23): ! # In 1945, Berlin was switched to Moscow Summer time (GMT+4) by <a ! # href="http://www.dhm.de/lemo/html/biografien/BersarinNikolai/"> # General [Nikolai] Bersarin</a>. # From Paul Eggert (2003-03-08): --- 1132,1139 ---- # [See tz-link.htm for the URL.] # From Joerg Schilling (2002-10-23): ! # In 1945, Berlin was switched to Moscow Summer time (GMT+4) by ! # <a href="http://www.dhm.de/lemo/html/biografien/BersarinNikolai/"> # General [Nikolai] Bersarin</a>. # From Paul Eggert (2003-03-08): diff -r -c old/leapseconds new/leapseconds *** old/leapseconds Mon Mar 24 08:30:59 2008 --- new/leapseconds Thu Jul 10 12:58:26 2008 *************** *** 1,4 **** ! # @(#)leapseconds 8.5 # Allowance for leapseconds added to each timezone file. --- 1,4 ---- ! # @(#)leapseconds 8.6 # Allowance for leapseconds added to each timezone file. *************** *** 44,49 **** --- 44,50 ---- Leap 1997 Jun 30 23:59:60 + S Leap 1998 Dec 31 23:59:60 + S Leap 2005 Dec 31 23:59:60 + S + Leap 2008 Dec 31 23:59:60 + S # INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) # *************** *** 50,83 **** # SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE # # SERVICE DE LA ROTATION TERRESTRE ! # OBSERVATOIRE DE PARIS # 61, Av. de l'Observatoire 75014 PARIS (France) # Tel. : 33 (0) 1 40 51 22 26 # FAX : 33 (0) 1 40 51 22 91 ! # Internet : services.iers(a)obspm.fr # ! # Paris, 18 January 2008 # ! # Bulletin C 35 # ! # To authorities responsible # for the measurement and ! # distribution of time # ! # INFORMATION ON UTC - TAI # ! # NO positive leap second will be introduced at the end of June 2008. ! # The difference between Coordinated Universal Time UTC and the ! # International Atomic Time TAI is : # ! # from 2006 January 1, 0h UTC, until further notice : UTC-TAI = -33 s # # Leap seconds can be introduced in UTC at the end of the months of December ! # or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every ! # six months, either to announce a time step in UTC, or to confirm that there # will be no time step at the next possible date. # # Daniel GAMBIS ! # Head ! # Earth Orientation Center of the IERS # Observatoire de Paris, France --- 51,92 ---- # SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE # # SERVICE DE LA ROTATION TERRESTRE ! # OBSERVATOIRE DE PARIS # 61, Av. de l'Observatoire 75014 PARIS (France) # Tel. : 33 (0) 1 40 51 22 26 # FAX : 33 (0) 1 40 51 22 91 ! # e-mail : services.iers(a)obspm.fr ! # http://hpiers.obspm.fr/eop-pc # ! # Paris, 4 July 2008 # ! # Bulletin C 36 # ! # To authorities responsible # for the measurement and ! # distribution of time # ! # UTC TIME STEP ! # on the 1st of January 2009 # ! # A positive leap second will be introduced at the end of December 2008. ! # The sequence of dates of the UTC second markers will be: # ! # 2008 December 31, 23h 59m 59s ! # 2008 December 31, 23h 59m 60s ! # 2009 January 1, 0h 0m 0s # + # The difference between UTC and the International Atomic Time TAI is: + # + # from 2006 January 1, 0h UTC, to 2009 January 1 0h UTC : UTC-TAI = - 33s + # from 2009 January 1, 0h UTC, until further notice : UTC-TAI = - 34s + # # Leap seconds can be introduced in UTC at the end of the months of December ! # or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every ! # six months, either to announce a time step in UTC or to confirm that there # will be no time step at the next possible date. # # Daniel GAMBIS ! # Head ! # Earth Orientation Center of IERS # Observatoire de Paris, France Only in old: logwtmp.c diff -r -c old/tz-link.htm new/tz-link.htm *** old/tz-link.htm Mon Dec 31 10:23:10 2007 --- new/tz-link.htm Mon Jul 7 09:47:19 2008 *************** *** 18,24 **** <body> <h1>Sources for Time Zone and Daylight Saving Time Data</h1> <address> ! @(#)tz-link.htm 8.15 </address> <p> Please send corrections to this web page to the --- 18,24 ---- <body> <h1>Sources for Time Zone and Daylight Saving Time Data</h1> <address> ! @(#)tz-link.htm 8.16 </address> <p> Please send corrections to this web page to the *************** *** 134,139 **** --- 134,142 ---- timezone information for all countries</a> displays tables of DST rules. <li><a href="http://timeanddate.com/worldclock/">The World Clock - Time Zones</a> lets you sort zone names and convert times.</li> + <li><a href="http://daylight-savings-time.info/">Graphical Display of + Time Zones and Daylight Saving Times</a> shows a graph of time + difference versus time for any pair of locations.</li> <li>The <a href="http://worldtimeengine.com/">World Time Engine</a> also contains data about time zone boundaries; it supports queries via place names and shows location maps.</li> *************** *** 178,184 **** </ul> <h2>Other <code>tz</code> compilers</h2> <ul> ! <li><a href="http://dialspace.dial.pipex.com/prod/dialspace/town/pipexdsl/s/asbm26/vzic/">Vzic iCalendar Timezone Converter</a> describes a <a href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> program that compiles --- 181,187 ---- </ul> <h2>Other <code>tz</code> compilers</h2> <ul> ! <li><a href="http://www.dachaplin.dsl.pipex.com/vzic/">Vzic iCalendar Timezone Converter</a> describes a <a href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> program that compiles *************** *** 353,359 **** </ul> <h2>Time zone boundaries</h2> <ul> ! <li><a href="http://efele.net/maps/">A map of the TZ timezones in the US</a> contains a <a href="http://en.wikipedia.org/wiki/Shapefile">shapefile</a> of the <code>tz</code> regions in the US.</li> --- 356,362 ---- </ul> <h2>Time zone boundaries</h2> <ul> ! <li><a href="http://efele.net/maps/tz/us/">A map of the TZ timezones in the US</a> contains a <a href="http://en.wikipedia.org/wiki/Shapefile">shapefile</a> of the <code>tz</code> regions in the US.</li> *************** *** 477,483 **** legal time in Britain</a> discusses in detail the country with perhaps the best-documented history of clock adjustments. The National Physical Laboratory also maintains an <a ! href="http://www.npl.co.uk/time/measurement_time/summer_time_archive.html">Archive of Summer time dates</a>.</dd> </dl> <h2>Precision timekeeping</h2> --- 480,486 ---- legal time in Britain</a> discusses in detail the country with perhaps the best-documented history of clock adjustments. The National Physical Laboratory also maintains an <a ! href="http://www.npl.co.uk/server.php?show=ConWebDoc.2714">Archive of Summer time dates</a>.</dd> </dl> <h2>Precision timekeeping</h2>

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Re: proposed changes for Brazil, Mauritius, Argentina, Berlin 1945, etc.
by Robbin Kawabata July 16, 2008

July 16, 2008

Just wanted to mention a small discrepancy between the 2008d cover letter description and actual timezone behavior. The commentary says Berlin should have no user-visible changes. However, changes in the europe file affected past behavior for some European timezones including Berlin (see zdump output diffs below). It seems the "Changes affecting past time stamps" section should have mentioned some European timezones changed behavior for 1945 or 1947. Commentary from cover letter: ... Changes affecting past time stamps. * For Mauritius, also include the 1982/1983 DST as reported by Steffen Thorsen. * For America/Argentina/San_Luis, redo the history from 1990 through 2000 to match what's in Shanks & Pottenger. The following changes should not affect externally visible behavior. ... * Redo the daylight-saving rules for Berlin in 1945 to make it clearer that these are for the Soviet Zone, not for Berlin in general. ... ==================================================== Diffs between 2008c and 2008d zdump outputs (European timezones): 26a27,30 > CET Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > CET Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 > CET Sat Sep 15 23:59:59 1945 UTC = Sun Sep 16 01:59:59 1945 CEST isdst=1 > CET Sun Sep 16 00:00:00 1945 UTC = Sun Sep 16 01:00:00 1945 CET isdst=0 15,16c15,16 < Europe/Belgrade Tue May 8 00:59:59 1945 UTC = Tue May 8 01:59:59 1945 CET isdst=0 < Europe/Belgrade Tue May 8 01:00:00 1945 UTC = Tue May 8 03:00:00 1945 CEST isdst=1 --- > Europe/Belgrade Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Belgrade Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 39,40c39,40 < Europe/Berlin Sun Apr 6 00:59:59 1947 UTC = Sun Apr 6 01:59:59 1947 CET isdst=0 < Europe/Berlin Sun Apr 6 01:00:00 1947 UTC = Sun Apr 6 03:00:00 1947 CEST isdst=1 --- > Europe/Berlin Sun Apr 6 01:59:59 1947 UTC = Sun Apr 6 02:59:59 1947 CET isdst=0 > Europe/Berlin Sun Apr 6 02:00:00 1947 UTC = Sun Apr 6 04:00:00 1947 CEST isdst=1 35,36c35,36 < Europe/Budapest Tue May 1 21:59:59 1945 UTC = Tue May 1 22:59:59 1945 CET isdst=0 < Europe/Budapest Tue May 1 22:00:00 1945 UTC = Wed May 2 00:00:00 1945 CEST isdst=1 --- > Europe/Budapest Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Budapest Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 15,16C15,16 < Europe/Ljubljana Tue May 8 00:59:59 1945 UTC = Tue May 8 01:59:59 1945 CET isdst=0 < Europe/Ljubljana Tue May 8 01:00:00 1945 UTC = Tue May 8 03:00:00 1945 CEST isdst=1 --- > Europe/Ljubljana Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Ljubljana Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 15,16c15,16 < Europe/Podgorica Tue May 8 00:59:59 1945 UTC = Tue May 8 01:59:59 1945 CET isdst=0 < Europe/Podgorica Tue May 8 01:00:00 1945 UTC = Tue May 8 03:00:00 1945 CEST isdst=1 --- > Europe/Podgorica Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Podgorica Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 15,16c15,16 < Europe/Sarajevo Tue May 8 00:59:59 1945 UTC = Tue May 8 01:59:59 1945 CET isdst=0 < Europe/Sarajevo Tue May 8 01:00:00 1945 UTC = Tue May 8 03:00:00 1945 CEST isdst=1 --- > Europe/Sarajevo Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Sarajevo Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 15,16c15,16 < Europe/Skopje Tue May 8 00:59:59 1945 UTC = Tue May 8 01:59:59 1945 CET isdst=0 < Europe/Skopje Tue May 8 01:00:00 1945 UTC = Tue May 8 03:00:00 1945 CEST isdst=1 --- > Europe/Skopje Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Skopje Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 13,14c13,14 < Europe/Sofia Mon Apr 2 01:59:59 1945 UTC = Mon Apr 2 02:59:59 1945 CET isdst=0 < Europe/Sofia Mon Apr 2 02:00:00 1945 UTC = Mon Apr 2 04:00:00 1945 EET isdst=0 --- > Europe/Sofia Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Sofia Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 EET isdst=0 15,16c15,16 < Europe/Zagreb Tue May 8 00:59:59 1945 UTC = Tue May 8 01:59:59 1945 CET isdst=0 < Europe/Zagreb Tue May 8 01:00:00 1945 UTC = Tue May 8 03:00:00 1945 CEST isdst=1 --- > Europe/Zagreb Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 CET isdst=0 > Europe/Zagreb Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 CEST isdst=1 26a27,30 > MET Mon Apr 2 00:59:59 1945 UTC = Mon Apr 2 01:59:59 1945 MET isdst=0 > MET Mon Apr 2 01:00:00 1945 UTC = Mon Apr 2 03:00:00 1945 MEST isdst=1 > MET Sat Sep 15 23:59:59 1945 UTC = Sun Sep 16 01:59:59 1945 MEST isdst=1 > MET Sun Sep 16 00:00:00 1945 UTC = Sun Sep 16 01:00:00 1945 MET isdst=0 ==================================================== Diffs of europe file: *** 2008c/europe Mon Mar 24 05:30:58 2008 --- 2008d/europe Mon Jul 7 06:45:31 2008 *************** *** 1,2 **** ! # @(#)europe 8.12 # <pre> --- 1,2 ---- ! # @(#)europe 8.14 # <pre> *************** *** 459,461 **** # The most recent directive covers the years starting in 2002. See: ! # <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html" # Directive 2000/84/EC of the European Parliament and of the Council --- 459,461 ---- # The most recent directive covers the years starting in 2002. See: ! # <a href="http://europa.eu.int/eur-lex/en/lif/dat/2000/en_300L0084.html"> # Directive 2000/84/EC of the European Parliament and of the Council *************** *** 482,484 **** Rule C-Eur 1943 only - Oct 4 2:00s 0 - ! Rule C-Eur 1944 only - Apr 3 2:00s 1:00 S # Whitman gives 1944 Oct 7; go with Shanks & Pottenger. --- 482,484 ---- Rule C-Eur 1943 only - Oct 4 2:00s 0 - ! Rule C-Eur 1944 1945 - Apr Mon>=1 2:00s 1:00 S # Whitman gives 1944 Oct 7; go with Shanks & Pottenger. *************** *** 485,486 **** --- 485,487 ---- Rule C-Eur 1944 only - Oct 2 2:00s 0 - + Rule C-Eur 1945 only - Sep 16 2:00 0 - Rule C-Eur 1977 1980 - Apr Sun>=1 2:00s 1:00 S *************** *** 1101,1102 **** --- 1102,1105 ---- # <a href="http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee8525662300 459099/defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf"> + # http://www.parlament-berlin.de/pds-fraktion.nsf/727459127c8b66ee85256623004… /defc77cb784f180ac1256c2b0030274b/$FILE/bersarint.pdf + # </a> # says that Bersarin issued an order to use Moscow time on May 20. *************** *** 1107,1112 **** # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S - Rule Germany 1945 only - Apr 2 2:00s 1:00 S - Rule Germany 1945 only - May 24 2:00 2:00 M # Midsummer - Rule Germany 1945 only - Sep 24 3:00 1:00 S - Rule Germany 1945 only - Nov 18 2:00s 0 - Rule Germany 1946 only - Apr 14 2:00s 1:00 S --- 1110,1111 ---- *************** *** 1114,1116 **** Rule Germany 1947 1949 - Oct Sun>=1 2:00s 0 - ! Rule Germany 1947 only - Apr 6 2:00s 1:00 S Rule Germany 1947 only - May 11 2:00s 2:00 M --- 1113,1118 ---- Rule Germany 1947 1949 - Oct Sun>=1 2:00s 0 - ! # http://www.ptb.de/de/org/4/44/441/salt.htm says the following transition ! # occurred at 3:00 MEZ, not the 2:00 MEZ given in Shanks & Pottenger. ! # Go with the PTB. ! Rule Germany 1947 only - Apr 6 3:00s 1:00 S Rule Germany 1947 only - May 11 2:00s 2:00 M *************** *** 1119,1120 **** --- 1121,1127 ---- Rule Germany 1949 only - Apr 10 2:00s 1:00 S + + Rule SovietZone 1945 only - May 24 2:00 2:00 M # Midsummer + Rule SovietZone 1945 only - Sep 24 3:00 1:00 S + Rule SovietZone 1945 only - Nov 18 2:00s 0 - + # Zone NAME GMTOFF RULES FORMAT [UNTIL] *************** *** 1121,1123 **** Zone Europe/Berlin 0:53:28 - LMT 1893 Apr ! 1:00 C-Eur CE%sT 1945 Apr 2 2:00 1:00 Germany CE%sT 1980 --- 1128,1131 ---- Zone Europe/Berlin 0:53:28 - LMT 1893 Apr ! 1:00 C-Eur CE%sT 1945 May 24 2:00 ! 1:00 SovietZone CE%sT 1946 1:00 Germany CE%sT 1980

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Re: proposed changes for Brazil, Mauritius, Argentina, Berlin 1945, etc.
by Robbin Kawabata July 16, 2008

July 16, 2008

1 0