April 2009 - 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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corrected DST data Switzerland 1941 and 1942, final report
by Alois Treindl Aug. 25, 2011

Aug. 25, 2011

Hello I have researched the DST usage in Switzerland during the 1940ies. As I wrote in an earlier message, I suspected the current tzdata values to be wrong. This is now verified. I have found copies of the original ruling by the Swiss Federal government, in 'Eidgenössische Gesetzessammlung 1941 and 1942' (Swiss federal law collection) and attach GIF copies of the two pages for 1941. DST began on Monday 5 May 1941, 1:00 am by shifting the clocks to 2:00 am DST ended on Monday 6 Oct 1941, 2:00 am by shifting the clocks to 1:00 am. DST began on Monday, 4 May 1942 at 01:00 am DST ended on Monday, 5 Oct 1942 at 02:00 am There was no DST in 1940, I have checked the law collection carefully. It is also indicated by the fact that the 1942 entry in the law collection points back to 1941 as a reference, but no reference to any other years are made. Newspaper articles I have read in the archives on 6 May 1941 reported about the introduction of DST (Sommerzeit in German) during the previous night as an absolute novelty, because this was the first time that such a thing had happened in Switzerland. I have also checked 1916, because one book source (Gabriel, Traite de l'heure dans le monde) claims that Switzerland had DST in 1916. This is false, no official document could be found. Probably Gabriel got misled by references to Germany, which introduced DST in 1916 for the first time. The tzdata rules for Switzerland must be changed to: Rule Swiss 1941 1942 - May Mon>=1 1:00 1:00 S Rule Swiss 1941 1942 - Oct Mon>=1 2:00 0 - The 1940 rules must be deleted. One further detail for Switzerland, which is probably out of scope for most users of tzdata: The zone file Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 0:29:44 - BMT 1894 Jun #Bern Mean Time 1:00 Swiss CE%sT 1981 1:00 EU CE%sT describes all of Switzerland correctly, with the exception of the Cantone Geneve (Geneva, Genf). Between 1848 and 1894 Geneve did not follow Bern Mean Time but kept its own local mean time. To represent this, an extra zone would be needed. Two GIF files are attached. best regards Alois -- || Alois Treindl, Astrodienst AG, mailto:alois@astro.com || Zollikon/Zurich, Switzerland || Free astrological charts at http://www.astro.com/ || SWISS EPHEMERIS Free Edition at http://www.astro.com/swisseph/

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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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Jakarta is Indonesia West Time Not Central Time
by Martin Pitt May 17, 2009

May 17, 2009

Hello tzdata developers, https://launchpad.net/bugs/365215 reported that tzdata currently puts Jakarta into WIT (Indonesia Central Time), but it actually belongs into WIB (Indonesia West Time). It seems that http://www.timeanddate.com/worldclock/timezone.html?n=108 also gets this wrong (perhaps it's using tzdata?) The official website is currently down, however this url still accessible from google cache: http://209.85.173.132/search?q=cache:JBpW5TryxxAJ:www.bmg.go.id/dataDetail.… but the real url is: http://www.bmg.go.id/dataDetail.bmg?Jenis=Teks&IDS=7452470612766189439&IDD=… The document states that GMT +7 (jakarta time) is Waktu Indonesia Barat (WIB), GMT +8 is Waktu Indonesia Tengah (WITA), and GMT +9 is Waktu Indonesia Timur (WIT). Thank you! Martin -- Martin Pitt | http://www.piware.de Ubuntu Developer (www.ubuntu.com) | Debian Developer (www.debian.org)

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License for the tzdata information
by Edwin Groothuis May 7, 2009

May 7, 2009

For all the years I have never worried about this, but today I got an email in my mailbox asking me "Since this is vendor imported data, we would like to register under which license this data is distributed.". Unfortunately I got not much info from Wikipedia, the tzdata or the tzcode files. The tzcode says "This code is in the public domain", but the tzdata doesn't have it, just a "This information is by no means authoritative". So... is there a license under which the tzdata is distributed? Edwin

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FW: Revision History of TZ database
by Olson, Arthur David (NIH/NCI) [E] April 29, 2009

April 29, 2009

I'm forwarding this message Hardik Patel, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado From: Hardik Patel [mailto:hardik@yahoo-inc.com] Sent: Wednesday, March 25, 2009 2:16 To: tz(a)lecserver.nci.nih.gov Cc: 'Hardik Patel' Subject: Revision History of TZ database Hi All, Where can I find revision history of changes that has happened in TZ database across given two versions? For example, I would like to know what all changes happened from TZ version 2007g to 2008c. I will appreciate any pointers/help regarding this. P.S. I have not subscribed to the timezone mailing list so kindly do ‘Reply All’ while responding this email thread else I will not be able to receive it. Thanks, Hardik

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Re: License for the tzdata information
by CHancuff＠aol.com April 29, 2009

April 29, 2009

I should have never posted at 4am. I'm net experienced enough to know that I'd probably get clobbered for somethin'. Leave it to Clive to deliver the one-two punch! Cliff Hancuff In a message dated 4/29/2009 11:59:26 A.M. Eastern Daylight Time, clive(a)davros.org writes: CHancuff(a)aol.com said: > The Berne Convention follows US Copyright law rather closely. Um, the US adopted the Berne Convention relatively recently. The rest of the world has been following it for far longer. -- Clive D.W. Feather | If you lie to the compiler, Email: clive(a)davros.org | it will get its revenge. Web: http://www.davros.org | - Henry Spencer Mobile: +44 7973 377646 **************Big savings on Dell XPS Laptops and Desktops!(http://pr.atwola.com/promoclk/100126575x1220631276x1201390200/aol… click.net%2Fclk%3B214101948%3B35952020%3Bv)

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Fwd: License for the tzdata information
by CHancuff＠aol.com April 29, 2009

April 29, 2009

The Berne Convention follows US Copyright law rather closely. _Berne Convention for the Protection of Literary and Artistic Works - Wikipedia, the free encyclopedia_ (http://en.wikipedia.org/wiki/Berne_Convention_for_the_Protection_of_Literar…) Cliff Hancuff ____________________________________ From: asmodai(a)in-nomine.org Reply-to: tz(a)elsie.nci.nih.gov To: tz(a)lecserver.nci.nih.gov CC: tz(a)lecserver.nci.nih.gov Sent: 4/29/2009 1:15:06 A.M. Eastern Daylight Time Subj: Re: License for the tzdata information -On [20090429 01:28], Olson, Arthur David (NIH/NCI) [E] (olsona(a)dc37a.nci.nih.gov) wrote: >There's no license. That might actually cause problems in Germany, I think. -- Jeroen Ruigrok van der Werven <asmodai(-at-)in-nomine.org> / asmodai イェルーンラウフロックヴァンデルウェルヴェン http://www.in-nomine.org/ | http://www.rangaku.org/ | GPG: 2EAC625B Tattva, achintya bheda abheda tattva... **************Big savings on Dell XPS Laptops and Desktops!(http://pr.atwola.com/promoclk/100126575x1220631276x1201390200/aol… click.net%2Fclk%3B214101948%3B35952020%3Bv)

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Re: License for the tzdata information
by CHancuff＠aol.com April 29, 2009

April 29, 2009

David is right. Jonas makes a valuable point, of sorts. The only value for registering a copyright, of any kind, of this collective public domain database is to protect the good name of this mailing list, tz. Other than that, there's little cause for "must be"'s (-es(?)) The potential complexity of this registration may be the spoiler. Cliff Hancuff In a message dated 4/29/2009 2:30:46 A.M. Eastern Daylight Time, jonas(a)mailup.net writes: The data must be made available under a public domain license. Data must be placed into the public domain to be unconstrained by copyright and to be available for both non-commercial and commercial usage. Science Commons [1] recommends the Open Data Commons Public Domain Dedication and License [2] or the Creative Commons CC0 license [3]. You must read the first link to understand how important is use a public domain license for data. [1] http://sciencecommons.org/resources/faq/database-protocol/ [2] http://www.opendatacommons.org/licenses/pddl/1.0/ [3] http://creativecommons.org/license/zero/ On Wed, 29 Apr 2009 07:14 +0200, "Jeroen Ruigrok van der Werven" <asmodai(a)in-nomine.org> wrote: > -On [20090429 01:28], Olson, Arthur David (NIH/NCI) [E] > (olsona(a)dc37a.nci.nih.gov) wrote: > >There's no license. > > That might actually cause problems in Germany, I think. -- http://www.fastmail.fm - Or how I learned to stop worrying and love email again **************Big savings on Dell XPS Laptops and Desktops!(http://pr.atwola.com/promoclk/100126575x1220631276x1201390200/aol… click.net%2Fclk%3B214101948%3B35952020%3Bv)

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Re: License for the tzdata information
by CHancuff＠aol.com April 29, 2009

April 29, 2009

What Clive said. It's 4am here and I wasn't thinkin' clearly. Thanks Clive. Cliff Hancuff In a message dated 4/29/2009 3:38:07 A.M. Eastern Daylight Time, clive(a)davros.org writes: CHancuff(a)aol.com said: > Edwin, some years ago there was talk of forming a sub-group of this mailing > list to tie down the loose ends to make this data register-able. Since > all tzcode is derived from public domain, the only copyrightable part of it > would be it, as a collective work. Not so - there is a difference between copyright on facts (doesn't exist) and copyright on the way those facts are expressed (does exist). So the specific format of the data is copyrightable. So is anything that is a guess or extrapolation. > To the best of my Intellectual Property Law knowledge, tzcode is > intrinsically in public domain, Not a concept that exists in my jurisdiction. -- Clive D.W. Feather | If you lie to the compiler, Email: clive(a)davros.org | it will get its revenge. Web: http://www.davros.org | - Henry Spencer Mobile: +44 7973 377646 **************Big savings on Dell XPS Laptops and Desktops!(http://pr.atwola.com/promoclk/100126575x1220631276x1201390200/aol… click.net%2Fclk%3B214101948%3B35952020%3Bv)

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