August 2006 - tz - lists.iana.org

proposed tz change for Latvia, Lithuania
by Paul Eggert 25 May '15

25 May '15

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 18 Feb '11

18 Feb '11

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 14 Sep '08

14 Sep '08

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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Australia - Broken Hill - Yancowinna
by Oscar van Vlijmen 15 Dec '06

15 Dec '06

Broken Hill, or more precise, the whole county of Yancowinna, differs from the rest of New South Wales, as clearly stated in the TZ database. Problem is: what is the "county of Yancowinna"? The Australian Standard Time Act 1987 mentions this county, but doesn't mention the county boundaries. Once they were known, but they have disappeared from recent maps. Finally I found a scan of an old map from the Land Registry, showing the Yancowinna county. Found on the website of The Sydney Morning Herald: <http://www.smh.com.au/articles/2003/08/29/1062050651816.html?oneclick=true> Click on field number 2 or download the map directly: <http://www.smh.com.au/specials/leases/pdf/map2.pdf> The following places are within the county boundaries: Broken Hill, The Gorge, Mount Gipps, Silverton, Stephens Creek, Wahratta, Yanco Glen. The name "Wahratta" is not perfectly readable from the map, but I've checked the name and location against the Australia file from the GEOnet Names Server <http://earth-info.nga.mil/gns/> Oscar van Vlijmen 2005-04-23

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Indiana gains a business from Ohio due to adoption of DST
by Paul Eggert 06 Sep '06

06 Sep '06

A press release today from the Dearborn County Economic Initiative claims that 3S Inc.'s recent move from Ohio to Dearborn County, Indiana was made possible by Indiana's recent adoption of daylight saving time. The press release quotes Matthew Euson, General Manager of 3S and a key decision maker with the relocation project, as saying: In addition to these factors, the change Indiana made to day light savings time also made the move to Indiana possible since most of our customers and vendors operate in this time zone. Reference: <http://www.insideindianabusiness.com/newsitem.asp?ID=19402> (2006-08-28 10:56:58 local time)

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Tzcode2006k.tar.gz and tzdata2006k.tar.gz
by Olson, Arthur David (NIH/NCI) [E] 28 Aug '06

28 Aug '06

The files... ftp://elsie.nci.nih.gov/pub/tzcode2006k.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2006k.tar.gz ...are now available; these incorporate the changes circulated last week on the time zone mailing list by Paul Eggert. --ado

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AAS wants astronomers' opinions on abolishing leap seconds by Sept. 15
by Paul Eggert 22 Aug '06

22 Aug '06

The American Astronomical Society has established a Leap Second Committee that is soliciting comments from professional and amateur astronomers on the draft ITU-R recommendation to abolish leap seconds. As I understand it, the latest proposal is to replace leap seconds with leap hours, which would occur every few hundred years at first. Comments are due by September 15. For details please see <http://www.aas.org/policy/LeapSecondCommittee.html>. For more about the issue in general, please see <http://en.wikipedia.org/wiki/Leap_second#Proposal_to_redefine_UTC_and_aboli…>, <http://www.ucolick.org/~sla/leapsecs/onlinebib.html>, and <http://www.ucolick.org/~sla/leapsecs/nc1985wp7a.html>.

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Gaza time
by Jesper Norgaard Welen 22 Aug '06

22 Aug '06

A quote from the 'asia' file: # From Paul Eggert (2005-11-22): # Starting 2004 transitions are from Steffen Thorsen's web site timeanddate.com. # From Steffen Thorsen (2005-11-23): # A user from Gaza reported that Gaza made the change early because of # the Ramadan. Next year Ramadan will be even earlier, so I think # there is a good chance next year's end date will be around two weeks # earlier--the same goes for Jordan. Steffens web site now reports that Gaza started DST very early this year, 1.st of April at 0:00 hour local time: http://www.timeanddate.com/worldclock/city.html?n=702 The tz database would have this change as other years, at First Friday on or after 15.th. of April 0:00, like previous years back to 1999. Now that we have a load of changes to publish, should we also include this change? Perhaps Steffen can comment? 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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Tzcode2006j.tar.gz and tzdata2006j.tar.gz
by Olson, Arthur David (NIH/NCI) [E] 21 Aug '06

21 Aug '06

Another Monday, another version. The files... ftp://elsie.nci.nih.gov/pub/tzcode2006j.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2006j.tar.gz ...are now available; these reflect the proposed changes circulated last week on the time zone mailing list by Paul Eggert. --ado

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Indiana's time zone melee continues....
by Paul Eggert 17 Aug '06

17 Aug '06

Indiana Gov. Mitch Daniels sent a letter Monday to the U.S. Dept. of Transportation supporting time reversal petitions filed by Pulaski County and (jointly) by Daviess, Dubois, Knox, Martin and Pike counties, asking to move back from central to eastern time. Starke and Perry counties have not petitioned to return to eastern time. "Time reversal petitions".... That has a nice ring to it. Dan Shaw reported yesterday that Pulaski county is currently in disarray. Two sample quotes from his article indicate how bad it is: "When you go to Francesville, the grocery store and the bank runs on Eastern time," [Mike Tiede, the president of the Pulaski County commissioners] said. "Medaryville runs on Central time. In Winamac, they run mostly on Eastern. It's just a zoo."... West Central School Corp., which serves slightly fewer than 1,000 students in Pulaski and Jasper counties, has remained on Eastern time and has taken to announcing events in both times. Some say the district should compromise and set its clocks back by a half an hour. Reference: Dan Shaw, Pulaski County ready to ditch time zone 'zoo', Lafayette Journal & Courier (2006-08-15 05:00 EST) <http://www.jconline.com/apps/pbcs.dll/article?AID=/20060815/NEWS/608150320/…>

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