December 2007 - 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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Proposed changes for Argentina, tzfile.5, and strerror
by Arthur David Olson March 30, 2008

March 30, 2008

Here are proposed changes to the time zone package: 1. Most importantly, changes to the "southamerica" file (combinining material from Jesper Norgaard Welen and Paul Eggert) to reflect Argentina's readoption of daylight saving time. 2. Jonathan Leffler's fixes to tzfile.5. 3. Changes to eliminate HAVE_STRERROR and the conditional strerror definition. (A safe change since it should have no run-time effects; we'll see if anybody complains about uncompilability). Barring problems these changes are to show up on the ftp site on Monday morning as usual, just in time to be late for the Argentina party. --ado ------- southamerica ------- *** /tmp/geta2179 Thu Dec 27 12:24:03 2007 --- /tmp/getb2179 Thu Dec 27 12:24:03 2007 *************** *** 1,4 **** ! # @(#)southamerica 8.13 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)southamerica 8.14 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 106,111 **** --- 106,123 ---- # from the International Date Line. Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S Rule Arg 2000 only - Mar Sun>=1 0:00 0 - + # From Jesper Norgaard Welen (2007-12-26) + # The last hurdle of Argentina DST is over, the proposal was approved in + # the lower chamber too (Deputados) with a vote 192 for and 2 against. + # By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to + # the original scanned proposal, where the dates and the zero hours are + # clear and unambiguous...This is the article about final approval: + # <a href="http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996"> + # http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 + # </a> + Rule Arg 2007 only - Dec 30 0:00 1:00 S + Rule Arg 2008 max - Mar Sun>=15 0:00 0 - + Rule Arg 2008 max - Oct Sun>=1 0:00 1:00 S # # From Peter Gradelski via Steffen Thorsen (2000-03-01): # We just checked with our Sao Paulo office and they say the government of ------- tzfile.5 ------- *** /tmp/geta2215 Thu Dec 27 12:27:17 2007 --- /tmp/getb2215 Thu Dec 27 12:27:17 2007 *************** *** 57,63 **** described in the file is associated with the same-indexed transition time. These values serve as indices into an array of .I ttinfo ! structures that appears next in the file; these structures are defined as follows: .in +.5i .sp --- 57,65 ---- described in the file is associated with the same-indexed transition time. These values serve as indices into an array of .I ttinfo ! structures (with ! .I tzh_typecnt ! entries) that appears next in the file; these structures are defined as follows: .in +.5i .sp *************** *** 138,144 **** the above header and data is followed by a second header and data, identical in format except that eight bytes are used for each transition time or leap second time. ! After the second header and data comes a newline-encloded, POSIX-TZ-environment-variable-style string for use in handling instants after the last transition time stored in the file (with nothing between the newlines if there is no POSIX representation for --- 140,146 ---- the above header and data is followed by a second header and data, identical in format except that eight bytes are used for each transition time or leap second time. ! After the second header and data comes a newline-enclosed, POSIX-TZ-environment-variable-style string for use in handling instants after the last transition time stored in the file (with nothing between the newlines if there is no POSIX representation for *************** *** 145,150 **** such instants). .SH SEE ALSO newctime(3) ! .\" @(#)tzfile.5 8.1 .\" This file is in the public domain, so clarified as of .\" 1996-06-05 by Arthur David Olson. --- 147,152 ---- such instants). .SH SEE ALSO newctime(3) ! .\" @(#)tzfile.5 8.2 .\" This file is in the public domain, so clarified as of .\" 1996-06-05 by Arthur David Olson. ------- Makefile ------- *** /tmp/geta2073 Thu Dec 27 12:14:33 2007 --- /tmp/getb2073 Thu Dec 27 12:14:33 2007 *************** *** 1,4 **** ! # @(#)Makefile 8.5 # 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 8.6 # 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). *************** *** 95,101 **** # -DHAVE_SETTIMEOFDAY=2 if settimeofday uses 2nd arg (4.3BSD) # -DHAVE_SETTIMEOFDAY=3 if settimeofday ignores 2nd arg (4.4BSD) # -DHAVE_STDINT_H=1 if you have a pre-C99 compiler with "stdint.h" - # -DHAVE_STRERROR=0 if your system lacks the strerror function # -DHAVE_SYMLINK=0 if your system lacks the symlink function # -DHAVE_SYS_STAT_H=0 if your compiler lacks a "sys/stat.h" # -DHAVE_SYS_WAIT_H=0 if your compiler lacks a "sys/wait.h" --- 95,100 ---- ------- private.h ------- *** /tmp/geta2092 Thu Dec 27 12:14:41 2007 --- /tmp/getb2092 Thu Dec 27 12:14:41 2007 *************** *** 21,27 **** #ifndef lint #ifndef NOID ! static char privatehid[] = "@(#)private.h 8.5"; #endif /* !defined NOID */ #endif /* !defined lint */ --- 21,27 ---- #ifndef lint #ifndef NOID ! static char privatehid[] = "@(#)private.h 8.6"; #endif /* !defined NOID */ #endif /* !defined lint */ *************** *** 48,57 **** #define HAVE_SETTIMEOFDAY 3 #endif /* !defined HAVE_SETTIMEOFDAY */ - #ifndef HAVE_STRERROR - #define HAVE_STRERROR 1 - #endif /* !defined HAVE_STRERROR */ - #ifndef HAVE_SYMLINK #define HAVE_SYMLINK 1 #endif /* !defined HAVE_SYMLINK */ --- 48,53 ---- ------- zic.c ------- *** /tmp/geta2111 Thu Dec 27 12:14:50 2007 --- /tmp/getb2111 Thu Dec 27 12:14:50 2007 *************** *** 3,9 **** ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.16"; #include "private.h" #include "locale.h" --- 3,9 ---- ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.17"; #include "private.h" #include "locale.h" *************** *** 160,169 **** static void writezone(const char * name, const char * string); static int yearistype(int year, const char * type); - #if !HAVE_STRERROR - static char * strerror(int); - #endif /* !HAVE_STRERROR */ - static int charcnt; static int errors; static const char * filename; --- 160,165 ---- *************** *** 405,423 **** ** Error handling. */ - #if !HAVE_STRERROR - static char * - strerror(errnum) - int errnum; - { - extern char * sys_errlist[]; - extern int sys_nerr; - - return (errnum > 0 && errnum <= sys_nerr) ? - sys_errlist[errnum] : _("Unknown system error"); - } - #endif /* !HAVE_STRERROR */ - static void eats(name, num, rname, rnum) const char * const name; --- 401,406 ----

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tzcode2007k.tar.gz and tzdata2007k.tar.gz
by Olson, Arthur David (NIH/NCI) [E] Dec. 31, 2007

Dec. 31, 2007

The files... ftp://elsie.nci.nih.gov/pub/tzcode2007k.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2007k.tar.gz ...are now available; these reflect the changes circulated last week on the time zone mailing list (most importantly, changes to the "southamerica" file based on Argentina's readoption of daylight saving time. --ado

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Argentina DST is law
by Jesper Norgaard Welen Dec. 28, 2007

Dec. 28, 2007

The last hurdle of Argentina DST is over, the proposal was approved in the lower chamber too (Deputados) with a vote 192 for and 2 against. By the way thanks to Mariano Absatz and Daniel Mario Vega for the link to the original scanned proposal, where the dates and the zero hours are clear and unambiguous. I should have tried the Send/Receive button first before complaining to the tz mailing list! This is the article about final approval: http://www.lanacion.com.ar/politica/nota.asp?nota_id=973996 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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southamerica source file patch (Argentina summer 2008 DST)
by Martin Chikilian Dec. 28, 2007

Dec. 28, 2007

Hello, i send you bellow a diff file containing changes to file southamerica, that changes reflects new Law 26350 approved by Argentinian Congress on 2007-12-26. The Law itself is about Daylight Saving Time at summer 2008, you can see the official bulletin at http://www.boletinoficial.gov.ar/. --- southamerica.orig 2007-12-03 11:50:41.000000000 -0300 +++ southamerica 2007-12-28 10:05:35.000000000 -0300 @@ -107,6 +107,11 @@ Rule Arg 1999 only - Oct Sun>=1 0:00 1:00 S Rule Arg 2000 only - Mar Sun>=1 0:00 0 - # +# Law 26350 approved by Argentinian Congress (2007-12-26) +# http://www.boletinoficial.gov.ar/ +Rule Arg 2007 only - Dec 30 0:00 1:00 S +Rule Arg 2008 only - Mar 16 0:00 0 - +# # From Peter Gradelski via Steffen Thorsen (2000-03-01): # We just checked with our Sao Paulo office and they say the government of # Argentina decided not to become one of the countries that go on or off DST. @@ -237,6 +242,8 @@ -4:00 - WART 1991 Oct 20 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 + -3:00 Arg AR%sT 2007 Dec 30 + -3:00 Arg AR%sT 2008 Mar 16 -3:00 - ART # # Tucuman (TM) Regards, Martin Chikilian Communication Partner S.R.L.

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tzdata modification
by Eduardo A. Suárez Dec. 27, 2007

Dec. 27, 2007

Hi, I don't know if this is right, could you help me? Sun Dec 30th 2007 we go GMT-0200, Sun Mar 16th 2008 we return GMT-0300 # Rule Arg 2007 only - Dec 30 0:00 1:00 S Rule Arg 2008 only - Mar 16 0:00 0 - # ... # Buenos Aires (BA), Capital Federal (CF), Zone America/Argentina/Buenos_Aires -3:53:48 - LMT 1894 Oct 31 -4:16:48 - CMT 1920 May # Cordoba Mean Time -4:00 - ART 1930 Dec -4:00 Arg AR%sT 1969 Oct 5 -3:00 Arg AR%sT 1999 Oct 3 -4:00 Arg AR%sT 2000 Mar 3 -2:00 Arg AR%sT 2007 Dec 30 -3:00 Arg AR%sT 2008 Mar 16 -3:00 - ART # Thanks, Eduardo.- ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

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Argentina adopts DST again
by Steffen Thorsen Dec. 27, 2007

Dec. 27, 2007

A user (Leonardo Chaim) reported that Argentina will adopt DST, and I have found more details on Argentina's presidential web site, as well as on many news sites. Argentina will advance clocks by one hour on 2007-12-30 00:00 to (01:00) and turn them back again on 2008-03-16 00:00 (to 23:00). It appears that all of the country (all Zone-entries) are affected. The official news report about it: (Spanish) http://www.casarosada.gov.ar/index.php?option=com_content&task=view&id=1509… which has a link to the "Comunicado"/official notice: http://www.casarosada.gov.ar/index.php?option=com_content&task=view&id=1510 translated: "The measurement will prevail in all the national territory as of the 00:00 hour of Sunday 30 of December of the present year, until the 00:00 hour of Sunday 16 of March of 2008, in that the clocks will have to retard one hour as a result of the application of the winter schedule. " News reports like http://www.lanacion.com.ar/opinion/nota.asp?nota_id=973037 indicate that Argentina will use DST next year as well, from October to March, although exact rules are not given. Best regards, Steffen / timeanddate.com

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Changes in Argentina DST rules
by Rodolfo Baader Dec. 27, 2007

Dec. 27, 2007

Hello, Yesterday, Argentina's congress approved a law regarding new DST rules. In 2007, from Dec 30 (next sunday) till Mar 16, we will use GMT-2 and then back to GMT-3. I mean, on December 30th 0 hour, the time will go forward one hour, and back again on March 16, at 0. What information do you need to update your timezone database? (I don't have the text of the law yet, to confirm this changes) Some links (in spanish): http://www.lanacion.com.ar/EdicionImpresa/economia/nota.asp?nota_id=974279&… http://www.pagina12.com.ar/diario/economia/2-96718-2007-12-27.html Thanks in advance, Regards, Rodolfo Baader -- ----------------------------------------------- ArCERT - http://www.arcert.gov.ar Te: (54-11) 4343-9001 int.512/514 | 4345-0383 Fax:(54-11) 4343-7458 Av.R. Saenz Peña 511 - Of:514 C1035AAA - Ciudad Autonoma de Buenos Aires Argentina ------------------------------------------------

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