September 2001 - 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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Corrections of zone.tab for CN entries
by yaoz＠vidar.niaaa.nih.gov Dec. 21, 2001

Dec. 21, 2001

Hi, Thanks for the effort to maintain the tz packages. Recently, I've seen people complain that in file zone.tab, entries regarding China (CN) are not right. They are: CN +4545+12641 Asia/Harbin north Manchuria CN +3114+12128 Asia/Shanghai China coast CN +2934+10635 Asia/Chungking China mountains CN +4348+08735 Asia/Urumqi Tibet & Xinjiang CN +3929+07559 Asia/Kashgar Eastern Turkestan There are several problems: 1. City names are in old form. Now there is a standard way (pinyin) to write it and it should be used; 2. Comments are not quite right. This may due to the historic reasons. Because of these problems, when users in China are presented a form to pick a time zone, they are very confused. To correct this, the first thing should be noted is that there is only ONE timezone in China. This is well documentd in file asia. Second, to reflect the current practice, zone.tab may be modified as: CN +4545+12641 Asia/Harbin Beijing Time - Heilongjiang CN +3114+12128 Asia/Shanghai Beijing Time CN +2934+10635 Asia/Chongqing Beijing Time - Sichuan CN +4348+08735 Asia/Urumqi Beijing Time - Xinjiang CN +3929+07559 Asia/Kashi Beijing Time - Xinjiang Or just one Beijin Time entry. But I really don't know how zone.tab and asia files are related to each other. So the above changes should only be a reference. Best regards, Yao Zhang

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RE: Additional Greenland time zone
by Jesper Nørgaard Sept. 29, 2001

Sept. 29, 2001

Actually, my speaking danish helped me to find another page which is more recent than Steffens page, and which mentions the time zone change in March 2001. Besides it is part of the web pages of the government in Greenland. But the information corresponds to Steffens information. Unfortunately it doesn't mention the GMT offset of each area. Greenland has been under Home Rule (sort of independence) but somewhat supported economically by the Danish Government during many years. Foreign policy has always been administered by the danish government, so that is why I am a bit puzzled that the 'europe' file says that Greenland left EU 1985-02-01, but they are still following EU time zone rules. There is still one representative from Greenland in the danish parliament (folketinget), which is elected at each danish election, thus coordinating the election dates of Denmark to be followed strictly in Greenland. On the page http://www.epr.gl/government/welcome.htm you can scroll down to the little sun which says "sommertid" and entering this goes to http://www.epr.gl/government/dk_pressrel/160301_sommertid.html which has the following text, with my translation in english: ========================== Sommertid starter ::Summer time starts Så nærmer tiden sig, hvor sommeren er tilbage og der skal skiftes fra vintertid til sommertid. :: Now the time approaches, when the summer is back and it is necessary to :: shift from winter time to summer time. Søndag den 25. marts, 2001, skal der skiftes til sommertid. Der skiftes officielt natten mellem lørdag og søndag. :: Sunday the 25.th. of March, 2001, it is necessary to shift to summer time. :: The official change happens the night between Saturday and Sunday. Det betyder, at Lørdag den 24. marts klokken 22.00 skal klokken stilles een time frem til klokken 23.00. :: This means that Saturday March 24 at 22:00 o'clock the time will be set one :: hour ahead to 23:00 o'clock. For Ittoqqortoormiit starter sommertiden Søndag den 25. marts klokken 00.00, hvor klokken stilles een time frem til klokken 01.00. :: For Ittoqqortoormiit the summer time starts Sunday March 25 at 0:00 o'clock, :: where the time will be set one hour ahead to 1:00 o'clock. For så vidt angår Danmarkshavn og forsvarsområdet ved Pituffik er der ikke indført sommertid. :: Concerning Danmarkshavn and the defense area at Pituffik there has not :: been implemented summer time. ========================== So the main changes are a new time zone Danmarkshavn with GMT+0 with no DST, and that the time zone America/Thule no longer uses summer time. As a personal comment, maybe the Pituffik air base (Thule) is internally using US daylight saving by the american personnel, while the local population nearby does not use summer time, as documented by the forementioned web pages. If that is the case, I don't know if we would make two different time zones for Thule ... but this is all highly speculative. Regards, Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Programador/Analista 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 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 CIMMYT home page: http://cimmyt.cgiar.org Check out my free program World Time Explorer: http://www20.Brinkster.com/timezone50/index.htm http://members.theglobe.com/timezone50/index.htm ---------- From: Steffen Thorsen[SMTP:straenn@thorsen.priv.no] Sent: Miércoles 6 de Junio de 2001 15:01 To: Time Zone List Subject: Re: Additional Greenland time zone On Wed, 6 Jun 2001, Gwillim Law wrote: > Does anyone out there speak Norwegian or Danish? Most of your translations are correct already, but here goes... > Sommertiden begjynner den 24. mars 2001. Grønland har 4 lokale tider, og i relasjon til UTC gjelder følgende tidslinje: DST starts on 24 March 2001. Greenland has 4 different local times, and compared to UTC these are: > Forsvarsområdet ved Thule UTC-4 The military zone/area near Thule > Grønlandsk normaltid UTC-3 > Scoresby-sund UTC-1 > Danmarks-havn UTC > Danmark (Mellem-europæisk tid) UTC+1 > Sommertid innføres som følger: DST will be introduced as follows: > 1. Grønlandsk normaltid: Den 24. mars 2001 kl. 2200 stilles uret frem til kl. 2300. Greenland normal time: 24 March 2001 at 2200 the clock is turned forward to 2300 > 2. Scoresbysund: Den 25. mars 2001 kl. 0000 stilles uret frem til kl. 0100. Scoresbysund: 25 March 2001 at 0000 the clocks are turned forward to 0100 > 3. I forsvarsområdet ved Thule samt i Danmarkshavn innføres det ikke sommertid." In the military area near Thule and in Danmarkshavn DST will not be introduced. > What I make of this is: Greenland Summer time begins on 24 March 2001. Greenland has four local times, and the relation to UTC is according to the following time line: [the following five items are aligned horizontally] > Thule and environs [?] UTC-4 > Standard Greenland time UTC-3 > Scoresbysund UTC-1 > Danmarkshavn UTC > Denmark (Central European Time) UTC+1 > Summer time [...?] > 1. Standard Greenland time: on 24 March 2001 at 22:00 change the clock to 23:00 [?] > 2. Scoresbysund: on 25 March 2001 at 00:00 change the clock to 01:00 > 3. In the environs of Thule together with Danmarkshavn [...?]." > > Here's an excerpt from another page <http://www.gh.gl/kn/news/govern/ukiunalun.htm>, probably in Danish: > > "Vintertid fra på søndag den 31. oktober > Uret stilles en time tilbage > Natten mellem lørdag og søndag den 31. oktober 1999 slutter sommertiden. Der skiftes officielt lørdag den 30. oktober 1999 kl. 23:00. Det betyder, at vi kl. 23:00 stiller klokken en time tilbage til kl. 22:00. > For Ittoqqortoormiit slutter sommertiden søndag den 31. oktober 1999 kl. 01:00, hvor klokken stilles een time tilbage til kl. 00:00. > For Danmarkshavn og i forsvarsområdet i Pituffik er der ikke indført sommertid/vintertid." > > It looks as if this means that in most of Greenland, the clock turned back from 30 October 1999 23:00 to 22:00. In Ittoqqortoormiit (= Scoresbysund), it went from 31 October 1999 01:00 to 00:00. In Danmarkshavn and Pituffik (= Thule), something else happened, but I can't tell what. The last line is: In Danmarkshavn and the military zone/area in Pituffik DST is not observed (i.e. there is no change on 31 October). -- Steffen Thorsen <steffen(a)thorsen.priv.no> <steffent(a)pvv.ntnu.no> http://www.thorsen.priv.no

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Fernando do Noronha
by Jesper Nørgaard Sept. 29, 2001

Sept. 29, 2001

I have one doubt about the time zone decree in Brazil. How will Pernambuco handle Fernando do Noronha? The little island was on GMT-2 without DST while it's administrative big brother Pernambuco state was on GMT-3. Since Pernambuco state is now on GMT-3 with DST, it would be logical to presume that Fernando do Noronha would be going on GMT-2 with DST, but time zone decisions are not always logical in that sense. Maybe they will just stay on GMT-2 without DST on Fernando do Noronha. Any information about this would be appreciated. Regards, 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 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 CIMMYT home page: http://cimmyt.cgiar.org Check out my free program World Time Explorer: http://www20.Brinkster.com/timezone50/index.htm http://tz.freewebsites.com/index.htm

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DST in Brazil
by Jesper Nørgaard Sept. 28, 2001

Sept. 28, 2001

=== Quote Begin ========================================== From: Rives McDow <rmcdow(a)enteles.com> Date: Wed, 19 Sep 2001 14:31:53 -0700 To: elsie <tz(a)elsie.nci.nih.gov> Subject: Brazil The Brazilian government issued a new decree, No. 3,916, on 9/13/01 announcing this season's dst. The dates are 10/14/01 to 2/17/02. Some states not previously observing dst, notably Alagoas, Ceare, Maranhao, Paraiba, Piaui, Rio Grande do Norte, and Sergipe, will observe dst this year. === Quote End ========================================== It seems that Pernambuco is also a newcomer to the states using DST, which with the above list will mean 8 states will be adopting DST again (?). As far as I remember they have all been on DST before. Regards, 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 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 CIMMYT home page: http://cimmyt.cgiar.org Check out my free program World Time Explorer: http://www20.Brinkster.com/timezone50/index.htm http://tz.freewebsites.com/index.htm

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FW: Brazil
by Olson, Arthur David (NCI) Sept. 27, 2001

Sept. 27, 2001

-----Original Message----- From: Rives McDow [mailto:rmcdow@enteles.com] Sent: Wednesday, September 26, 2001 11:44 AM To: Paul Eggert; Olson, Arthur David (NCI) Subject: FW: Brazil Dear Paul and Arthur, I sent this to the list on the 19th and it didn't show up. It possibly may have been my server, as I just tried to send it again to Paul, and it bounced back. Rives ---------- From: Rives McDow <rmcdow(a)enteles.com> Date: Wed, 19 Sep 2001 14:31:53 -0700 To: elsie <tz(a)elsie.nci.nih.gov> Subject: Brazil The Brazilian government issued a new decree, No. 3,916, on 9/13/01 announcing this season's dst. The dates are 10/14/01 to 2/17/02. Some states not previously observing dst, notably Alagoas, Ceare, Maranhao, Paraiba, Piaui, Rio Grande do Norte, and Sergipe, will observe dst this year. More detailed information is available on Brazil's government site at: www.presidencia.gov.br under the link Legislaçåo, then Decretos, then 2001, then go to the link for decree 3,916 to read the decree (in Portugese). Rives

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Re: Corrections of zone.tab for CN entries
by yaoz＠vidar.niaaa.nih.gov Sept. 24, 2001

Sept. 24, 2001

> From eggert(a)twinsun.com Mon Sep 24 13:53:11 2001 > > > Date: Mon, 24 Sep 2001 00:25:08 -0400 (EDT) > > From: <yaoz(a)vidar.niaaa.nih.gov> > > > > 1. City names are in old form. Now there is a standard way (pinyin) > > to write it and it should be used; > > The tz database uses the most common spelling in ordinary English. > For example, it uses "Rome", even though "Roma" is the correct Italian > name. When I first added those entries, the pinyin method was not the > most common spelling in English, and my impression is that "Chungking" > and "Kashgar" are still quite commonly used in English, so it's not > entirely clear to me that the time is right to switch to pinyin. > (If I'm incorrect about this, please let me know.) I think "Kashgar" or "Kaxgar" is still widely used but "Chungking" is not. (I was born in "Chongqing", and have never seen people spell it like "Chungking" these days, maybe I can find that spelling in historical books). It seems to me modern English dictionaries published in US have switched to pinyin already. > However, I think it's quite reasonable to support both spellings, and > so I'll add aliases for the pinyin spellings in my next proposed patch. That is better. > > 2. Comments are not quite right. This may due to the historic > > reasons. Because of these problems, when users in China are > > presented a form to pick a time zone, they are very confused. > > How about if we make the following change for now? > > CN +3114+12128 Asia/Shanghai most locations > CN +4545+12641 Asia/Harbin Heilongjiang > CN +2934+10635 Asia/Chungking China mountains > CN +4348+08735 Asia/Urumqi Tibet & most of Xinjiang > CN +3929+07559 Asia/Kashgar Eastern Turkestan The way I submitted to you is following examples of US. That is "time - state (province)". My comments for above are: a. Urumqi is in Xinjiang so it maybe better say "Xinjiang & Tibet". b. Kashgar is also in Xinjiang and there is no such region as "Eastern Turkestan". That region is commonly call "Southern Xinjiang". It seems to me those entries exists because historically, they are in different time zones (as you specified in "asia" file). But I've seen Linux users in China wondering "Why Shanghai, Harbin, etc. are picked up but not Beijing or my city? We always refer to the standard time as 'Beijing Time' after all.". > I'm not sure about using the label "Beijing Time" for all of these > locations. (Don't people say "China time" more often than "Beijing > Time"?) Ideally the five entries would clearly delineate the > boundaries between the five regions of China that have different time > zone histories, but I don't have that information to hand right now. On TV, radio, it is always saying "It is now 20' clock Beijing Time." I haven't heard of "China time" before. BTW, your 'asia' data file is really interesting. I've learned a lot from it. I've never realized that China has used different time zones before. That is why I often get confused when I was travelling in US at first. Now I get used to it, I maybe as well get confused again when I travels back in China. For example, I may end up have to get up at 7am in Shanghai, and get up at 11am in Xinjiang. In 'asia', you are saying before 1980, there are still 5 timezones in China. That doesn't seems to be the case to my experience. My family lived in Chongqing, Shanghai since 60s. I don't recall any time zone change. Let me do some research later. I have a Chinese Encyclopedia CD somewhere. I hope I can find more info on this topic. Thank you very much for your reply. Best regards, Yao Zhang

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FW: Corrections of zone.tab for CN entries
by Olson, Arthur David (NCI) Sept. 24, 2001

Sept. 24, 2001

Yao Zhang is not on the time zone mailing list; direct replies appropriately. --ado -----Original Message----- From: yaoz(a)vidar.niaaa.nih.gov [mailto:yaoz@vidar.niaaa.nih.gov] Sent: Monday, September 24, 2001 12:25 AM To: tz(a)elsie.nci.nih.gov Subject: Corrections of zone.tab for CN entries Hi, Thanks for the effort to maintain the tz packages. Recently, I've seen people complain that in file zone.tab, entries regarding China (CN) are not right. They are: CN +4545+12641 Asia/Harbin north Manchuria CN +3114+12128 Asia/Shanghai China coast CN +2934+10635 Asia/Chungking China mountains CN +4348+08735 Asia/Urumqi Tibet & Xinjiang CN +3929+07559 Asia/Kashgar Eastern Turkestan There are several problems: 1. City names are in old form. Now there is a standard way (pinyin) to write it and it should be used; 2. Comments are not quite right. This may due to the historic reasons. Because of these problems, when users in China are presented a form to pick a time zone, they are very confused. To correct this, the first thing should be noted is that there is only ONE timezone in China. This is well documentd in file asia. Second, to reflect the current practice, zone.tab may be modified as: CN +4545+12641 Asia/Harbin Beijing Time - Heilongjiang CN +3114+12128 Asia/Shanghai Beijing Time CN +2934+10635 Asia/Chongqing Beijing Time - Sichuan CN +4348+08735 Asia/Urumqi Beijing Time - Xinjiang CN +3929+07559 Asia/Kashi Beijing Time - Xinjiang Or just one Beijin Time entry. But I really don't know how zone.tab and asia files are related to each other. So the above changes should only be a reference. Best regards, Yao Zhang

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why?
by SLLFunk＠aol.com Sept. 24, 2001

Sept. 24, 2001

To Whom it may concern: Every year I dread daylight savings time. I understand why this started many years ago but I do not understand why it continues. Everyone I talk to makes the same comments. We would all prefer it to stay light outside later at night and no one minds it being dark in the morning. I think we should eliminate daylight savings time and if we are going to change the clocks at all we should turn them ahead in the fall and back in the spring. It is backwards now! If you are not the correct person to email about this can you please forward this email to that person or send me their email? If this is determined by each individual state, I would be concerned with CT and NY. I would like to start a petition to change this practice and I need to know how many names would be considered significant, if they can be from different states across the country and where to send it. Thank you, Stefanie

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Time zone files
by Warnock, Vance (CRTUSW) Sept. 20, 2001

Sept. 20, 2001

I was wondering if you had discontinued the posting of the timezone files in the /pub directory on the ftp site. I seem to be locked out of the site. Vance Warnock Concert Data Warehouse 719-457-6856 Ph 719-457-6899 Fax 601-6856 CVNS

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