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Hermosillo timezone
by Jesper Norgaard Welen Sept. 28, 2008

Sept. 28, 2008

To David Hancock The offset is wrong for the airport MMHO Hermosillo in your data because you encoded it wrongly as America/Chihuahua, while it should be America/Hermosillo. You had a typo in the email which spelled it Hermisillo, I don't know if that is a simple typo when sending or it was the root of the problem. Hermosillo is in the state of Sonora, which is the only state in Mexico that does not use Daylight Saving. Regards, Jesper Nørgaard Welen No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 270.7.1/1687 - Release Date: 2008-09-23 18:32

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yearistype.sh questions
by Steve Ward Sept. 28, 2008

Sept. 28, 2008

Why is the file "yearistype.sh" in tzdata*.tar.gz instead of tzcode*.tar.gz (where it is used)? What is the purpose of copying "yearistype.sh" to "yearistype" during make? It seems unnecessary to have two copies of a file. Thanks for your time. Steve Ward

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Offset for America/Chihuahua possibly wrong?
by Hancock, David (DHANCOCK) Sept. 26, 2008

Sept. 26, 2008

Our company provides flight-support services to business aviation, and we use the TZ database from our web-based flight-planning pages to allow date entry in local or Zulu time. One of our Mexico-based customers called to say our offset was wrong for the airport MMHO (Hermisillo). We're getting GMT-6 from our Olson database. We called two places at that airport, and both report that they are GMT-7. The specific timezone reference is America/Chihuahua, and we are using the 2008f dataset. Does anyone have any clues about the America/Chihuahua offset? It's not due to go off DST until 10/26, but it appears to be off by one hour NOW. Thanks for any assistance you can provide. Cheers! -- David Hancock | dhancock(a)arinc.com

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Carnival Sunday in Brazil
by Jesper Norgaard Welen Sept. 22, 2008

Sept. 22, 2008

According to Federico A. C. Neves and Herton Ronaldo Krzesinski there are some exceptions to the rule of ending DST Third Sunday of February in Brazil, which seems to be correct. I just wanted to point out that there is a Carnival dates calculator at HYPERLINK "http://www.ipanema.com/carnival/dates.htm"http://www.ipanema.com/carnival/d ates.htm from which I calculated the following Carnival Sunday list for 2008 to 2041: Carnival Sunday 2008-2041: 2008-02-03 2009-02-22 2010-02-14 2011-03-06 2012-02-19 2013-02-10 2014-03-02 2015-02-15 2016-02-07 2017-02-26 2018-02-11 2019-03-03 2020-02-23 2021-02-14 2022-02-27 2023-02-19 2024-02-11 2025-03-02 2026-02-15 2027-02-07 2028-02-27 2029-02-11 2030-03-03 2031-02-23 2032-02-08 2033-02-27 2034-02-19 2035-02-04 2036-02-24 2037-02-15 2038-03-07 2039-02-20 2040-02-12 2041-03-03 This basically confirms the rules elaborated. Note that there is a typo "bellow" in the rules given in the earlier email, and that perhaps instead of giving specific dates, it might be better to give the rule for the exception dates like this: +Rule Brazil 2008 2011 - Feb Sun>=15 0:00 0 - +Rule Brazil 2012 only - Feb Sun>=22 0:00 0 - +Rule Brazil 2013 2014 - Feb Sun>=15 0:00 0 - +Rule Brazil 2015 only - Feb Sun>=22 0:00 0 - +Rule Brazil 2016 2022 - Feb Sun>=15 0:00 0 - +Rule Brazil 2023 only - Feb Sun>=22 0:00 0 - +Rule Brazil 2024 2025 - Feb Sun>=15 0:00 0 - +Rule Brazil 2026 only - Feb Sun>=22 0:00 0 - +Rule Brazil 2027 2033 - Feb Sun>=15 0:00 0 - +Rule Brazil 2034 only - Feb Sun>=22 0:00 0 - +Rule Brazil 2035 2036 - Feb Sun>=15 0:00 0 - +Rule Brazil 2037 only - Feb Sun>=22 0:00 0 - +Rule Brazil 2038 max - Feb Sun>=15 0:00 0 - This should give the same actual dates, but will give a hint on how the dates behave after 2038. A bit a matter of taste I admit. Usually we don't give rules as Sun>=x when this spans only one year, but here the same rule Sun>=22 is applied a few years later each cycle. - Jesper Nørgaard Welen No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 270.7.0/1681 - Release Date: 2008-09-19 15:54

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Another update for Brazil in the next time?
by Oliver Gerber Sept. 22, 2008

Sept. 22, 2008

Hello everyone, will there be another update for Brazil in the next time as it was announced in the 2008f release e-mail? Are there already plans when it may be released? Best regards, Oliver Oliver Gerber Diplom-Informatiker Software Engineer Cardinal Health Research Services Cardinal Health Germany 234 GmbH Leibnizstraße 7 97204 Höchberg, Germany Amtsgericht Würzburg HRB 7004 Geschäftsführer: Ralf Lother, Paul ter Grote Tel. +49 (0)931 4972 276 Fax +49 (0)931 4972 62276 oliver.gerber(a)cardinalhealth.com www.cardinalhealth.com/researchservices

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FW: webpage out of zone-page
by Olson, Arthur David (NIH/NCI) [E] Sept. 22, 2008

Sept. 22, 2008

I'm forwarding this message from tsv(a)tbbs.net, who is not on the time zone mailing list. Those of you who are on the time zone mailing list, please direct replies appropriately. --ado -----Original Message----- From: hsv(a)tbbs.net [mailto:hsv@tbbs.net] Sent: Thursday, September 18, 2008 6:16 To: Olson, Arthur David (NIH/NCI) [E] Cc: tz(a)elsie.nci.nih.gov Subject: webpage out of zone-page I hav written Javascript that within Firefox turns the zone-pages into webpages <home.tbbs.net/hsv/DST>. I hope that that is all right.

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Shapefiles for tz timezones and maps for 2008
by Eric Muller Sept. 19, 2008

Sept. 19, 2008

I am pleased to announce a first version of a shapefile for tz timezones of the world, available at <http://efele.net/maps/tz/>. There is still work to do: clarify some details, define a strategy for Greenland and Antarctica, clean up the US portion, figure out the licensing (the goal is something like CC-BY-SA or GFDL, at least for the parts I have rights to), so consider this a beta version. Also, no guarantee for now that the URLs will be stable. If you don't know how to deal with shapefiles, you may still want to look at the pages, I have included maps as pngs. There are also a number of freely available tools to view and/or edit shapefiles, such as OpenJump. I have also generated a couple of maps to visualize 2008 at <http://efele.net/maps/tz/2008>. They may be helpful to QA the tz database itself. I have many folks to thank for their help in producing all this (see the thanks page), but I want to particularly thank Gwillem Law, Jesper Nørgaard Welen, Chris Walton, and of course the tz team. Suggestions are welcome, Eric.

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FW: Brazil DST changes - Mailing list and new diffs
by Olson, Arthur David (NIH/NCI) [E] Sept. 19, 2008

Sept. 19, 2008

I'm forwarding this message from Frederico A. C. Neves, who was not on the time zone mailing list at the time it was sent. --ado -----Original Message----- From: Frederico A C Neves [mailto:fneves@registro.br] Sent: Monday, September 15, 2008 1:28 To: Olson(a)registro.br; Olson, Arthur David (NIH/NCI) [E] Subject: Brazil DST changes - Mailing list and new diffs Dear Mr. Olson, I've tried to subscribe to the TZ mailing list apparently without success. I've a new diff file with 2 corrected typos. I'm sending the message direct to you because I saw your message at the archives talking about the subject I sent originally. I can't find my message at the archives. Regards, Frederico Neves

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Zone America/Argentina/[location]
by Mario Callisto Sept. 19, 2008

Sept. 19, 2008

Hi, is there a reason why zones of Argentina are named Zone America/Argentina/[location] (example: America/Argentina/Mendoza) while all others seem to follow a different convention, i.e Zone [continent]/[location] (example for country Brazil: America/Recife)? Thank you in advance for yr reply. Best, Mario

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webpage out of zone-page
by hsv＠tbbs.net Sept. 18, 2008

Sept. 18, 2008

I hav written Javascript that within Firefox turns the zone-pages into webpages <home.tbbs.net/hsv/DST>. I hope that that is all right.

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Kwajalein/Majuro division and others
by Jesper Norgaard Welen Sept. 16, 2008

Sept. 16, 2008

Thanks for the feedback Eric, I appreciate it. ============ Eric Muller wrote ========================================= I spot-checked a few things, and thought you would like to know: - it seems that the polygon for the south east corner of British Columbia is missing (at least, I don't have it in OpenJump) - I don't see the equivalent of the Australia/Eucla timezone - I think the Kwajelein timezone is at most the Kwajelein atoll (and at least those islands of the atoll that are leased by the US), and your zone seems to include islands from other atolls (Maloelap, Erikub, Wotje, Ailuk) ==================================================================== I think everything is OK in the south east corner of British Columbia - how do you spot it is missing? There are timezone shapes for Cranbrook (which is probably what you refer to) and Creston, apart from Dawson Creek to the north-west, and Lloydminster in the Saskatchewan area, all independent timezones. You are right about Eucla. The city is there in World Time Explorer, with correct timezone information, but I never created a shape for Eucla since I don't know the extension of it. Do you have any authoritative info (or even hear-say)? The Kwajalein question is interesting (as the teacher says when he doesn't know the answer). I have no authoritative information about this, so it is quite probable that you have found one or several errors. Wikipedia divides the Marshall Islands in the Ratak Chain (Sunrise Eastern) and Ralik Chain (Sunset, Western). Majuro is part of the former, and Kwajalein of the latter, but I'm not sure if geographic/administrative regions can be directly related to timezones, so that everything in one Chain belongs to that timezone (that would certainly be an easy solution, probably too easy). In that case you are right that Maloelap, Erikub, Wotje, Ailuk all should belong to the Majuro timezone - it would also mean the following additional changes >From Majuro timezone to Kwajalein timezone: Ailingalap, Namorik, Jabwot, Namu, >From Kwajalein timezone to Majuro timezone: Bikar. ============ Eric Muller wrote ========================================= You may want to check the licensing terms of your source data. I don't really understand the practices for maps, but I suspect your map is a derived work, and that you don't have complete freedom for the licensing terms. ==================================================================== You might be right about this. At least the base world map was part of the ESRI shapefile collection, and thus have a license attached, so that derived works can be made and used, but would not give complete licensing freedom. I think I have worked quite a lot to create added (timezone) value to the map, but the consideration exists. Regards, - Jesper Nørgaard Welen No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 270.6.21/1667 - Release Date: 2008-09-11 18:55

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proposed time zone data changes
by Arthur David Olson Sept. 16, 2008

Sept. 16, 2008

Below find proposed changes to data files in the time zone package. The executive summary: africa Mauritius DST 2008 ff. from last Sun Oct to last Sun Mar (per Riad M. Hossen Ally) Morocco End of DST 2008 ff. changed from Sep 28 to Sep 1 (per Steffen Thorsen) asia Gaza End of DST 2008 ff. changed from second Thu in Sep to last Thu in Aug (per Alexander Krivenyshev) Pakistan End of DST 2008 only changed from Sep 1 to Nov 1 (per Alexander Krivenyshev) europe Turkey Add comments about proposed changes in 2011 (per Sue Williams) southamerica Argentina Start of DST 2008 ff. changed from first to third Sun (per Alexander Krivenyshev) Brazil Start of DST 2008 ff. changed from second to third Sun (per Steffen Thorsen) I'll let these percolate until 2008-09-15; if no one reports problems, the ftp archives will be updated to reflect these changes. --ado diff -r -c old/africa new/africa *** old/africa Sun Jul 20 15:47:07 2008 --- new/africa Sun Sep 7 15:42:40 2008 *************** *** 1,4 **** ! # @(#)africa 8.15 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)africa 8.16 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 436,446 **** # 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 2:00s 1:00 S ! Rule Mauritius 2009 only - Mar 27 2:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis 4:00 Mauritius MU%sT # Mauritius Time --- 436,463 ---- # http://www.worldtimezone.com/dst_news/dst_news_mauritius02.html # </a> + # From Riad M. Hossen Ally (2008-08-03): + # The Government of Mauritius weblink + # <a href="http://www.gov.mu/portal/site/pmosite/menuitem.4ca0efdee47462e7440a600248a5…"> + # http://www.gov.mu/portal/site/pmosite/menuitem.4ca0efdee47462e7440a600248a5… + # </a> + # Cabinet Decision of July 18th, 2008 states as follows: + # + # 4. ...Cabinet has agreed to the introduction into the National Assembly + # of the Time Bill which provides for the introduction of summer time in + # Mauritius. The summer time period which will be of one hour ahead of + # the standard time, will be aligned with that in Europe and the United + # States of America. It will start at two o'clock in the morning on the + # last Sunday of October and will end at two o'clock in the morning on + # the last Sunday of March the following year. The summer time for the + # year 2008 - 2009 will, therefore, be effective as from 26 October 2008 + # and end on 29 March 2009. + # 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 max - Oct lastSun 2:00 1:00 S ! Rule Mauritius 2009 max - Mar lastSun 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Mauritius 3:50:00 - LMT 1907 # Port Louis 4:00 Mauritius MU%sT # Mauritius Time *************** *** 525,531 **** --- 542,563 ---- # From Arthur David Olson (2008-05-09): # XXX--guess that it is only Morocco for now; guess only 2008 for now. + # From Steffen Thorsen (2008-08-27): + # Morocco will change the clocks back on the midnight between August 31 + # and September 1. They originally planned to observe DST to near the end + # of September: + # + # One article about it (in French): + # <a href="http://www.menara.ma/fr/Actualites/Maroc/Societe/ci.retour_a_l_heure_gmt_a_…"> + # http://www.menara.ma/fr/Actualites/Maroc/Societe/ci.retour_a_l_heure_gmt_a_… + # </a> + # + # We have some further details posted here: + # <a href="http://www.timeanddate.com/news/time/morocco-ends-dst-early-2008.html"> + # http://www.timeanddate.com/news/time/morocco-ends-dst-early-2008.html + # </a> # RULE NAME FROM TO TYPE IN ON AT SAVE LETTER/S + Rule Morocco 1939 only - Sep 12 0:00 1:00 S Rule Morocco 1939 only - Nov 19 0:00 0 - Rule Morocco 1940 only - Feb 25 0:00 1:00 S *************** *** 542,548 **** Rule Morocco 1978 only - Jun 1 0:00 1:00 S Rule Morocco 1978 only - Aug 4 0:00 0 - Rule Morocco 2008 only - Jun 1 0:00 1:00 S ! Rule Morocco 2008 only - Sep 28 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26 0:00 Morocco WE%sT 1984 Mar 16 --- 574,580 ---- Rule Morocco 1978 only - Jun 1 0:00 1:00 S Rule Morocco 1978 only - Aug 4 0:00 0 - Rule Morocco 2008 only - Jun 1 0:00 1:00 S ! Rule Morocco 2008 only - Sep 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Casablanca -0:30:20 - LMT 1913 Oct 26 0:00 Morocco WE%sT 1984 Mar 16 diff -r -c old/asia new/asia *** old/asia Sun Jul 20 15:09:44 2008 --- new/asia Sun Sep 7 15:42:40 2008 *************** *** 1,4 **** ! # @(#)asia 8.22 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)asia 8.23 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 1541,1551 **** # From Arthur David Olson (2008-05-19): # XXX--midnight transitions is a guess; 2008 only is a guess. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 - Rule Pakistan 2008 only - Jun 1 0:00 1:00 S ! Rule Pakistan 2008 only - Sep 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Karachi 4:28:12 - LMT 1907 5:30 - IST 1942 Sep --- 1541,1564 ---- # From Arthur David Olson (2008-05-19): # XXX--midnight transitions is a guess; 2008 only is a guess. + # From Alexander Krivenyshev (2008-08-28): + # Pakistan government has decided to keep the watches one-hour advanced + # for another 2 months--plan to return to Standard Time on October 31 + # instead of August 31. + # + # <a href="http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html"> + # http://www.worldtimezone.com/dst_news/dst_news_pakistan02.html + # </a> + # OR + # <a href="http://dailymailnews.com/200808/28/news/dmbrn03.html"> + # http://dailymailnews.com/200808/28/news/dmbrn03.html + # </a> + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Pakistan 2002 only - Apr Sun>=2 0:01 1:00 S Rule Pakistan 2002 only - Oct Sun>=2 0:01 0 - Rule Pakistan 2008 only - Jun 1 0:00 1:00 S ! Rule Pakistan 2008 only - Nov 1 0:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Karachi 4:28:12 - LMT 1907 5:30 - IST 1942 Sep *************** *** 1665,1670 **** --- 1678,1700 ---- # For lack of better information, predict that future changes will be # the 2nd Thursday of September at 02:00. + # From Alexander Krivenyshev (2008-08-28): + # Here is an article, that Mideast running on different clocks at Ramadan. + # + # Gaza Strip (as Egypt) ended DST at midnight Thursday (Aug 28, 2008), while + # the West Bank will end Daylight Saving Time at midnight Sunday (Aug 31, 2008). + # + # <a href="http://www.guardian.co.uk/world/feedarticle/7759001"> + # http://www.guardian.co.uk/world/feedarticle/7759001 + # </a> + # <a href="http://www.abcnews.go.com/International/wireStory?id=5676087"> + # http://www.abcnews.go.com/International/wireStory?id=5676087 + # </a> + # or + # <a href="http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html"> + # http://www.worldtimezone.com/dst_news/dst_news_gazastrip01.html + # </a> + # The rules for Egypt are stolen from the `africa' file. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule EgyptAsia 1957 only - May 10 0:00 1:00 S *************** *** 1680,1686 **** Rule Palestine 2005 only - Oct 4 2:00 0 - Rule Palestine 2006 max - Apr 1 0:00 1:00 S Rule Palestine 2006 only - Sep 22 0:00 0 - ! Rule Palestine 2007 max - Sep Thu>=8 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Gaza 2:17:52 - LMT 1900 Oct --- 1710,1717 ---- Rule Palestine 2005 only - Oct 4 2:00 0 - Rule Palestine 2006 max - Apr 1 0:00 1:00 S Rule Palestine 2006 only - Sep 22 0:00 0 - ! Rule Palestine 2007 only - Sep Thu>=8 2:00 0 - ! Rule Palestine 2008 max - Aug lastThu 2:00 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Gaza 2:17:52 - LMT 1900 Oct diff -r -c old/europe new/europe *** old/europe Mon Jul 28 14:10:59 2008 --- new/europe Sun Sep 7 15:42:41 2008 *************** *** 1,4 **** ! # @(#)europe 8.17 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)europe 8.18 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 2353,2358 **** --- 2353,2379 ---- # (on a non-government server though) describing dates between 2002 and 2006: # http://www.alomaliye.com/bkk_2002_3769.htm + # From Sue Williams (2008-08-11): + # I spotted this news article about a potential change in Turkey. + # + # <a href="http://www.hurriyet.com.tr/english/domestic/9626174.asp?scr=1"> + # http://www.hurriyet.com.tr/english/domestic/9626174.asp?scr=1 + # </a> + + # From Sue Williams (2008-08-20): + # This article says that around the end of March 2011, Turkey wants to + # adjust the clocks forward by 1/2 hour and stay that way permanently. + # The article indicates that this is a change in timezone offset in addition + # to stopping observance of DST. + # This proposal has not yet been approved. + # + # Read more here... + # + # Turkey to abandon daylight saving time in 2011 + # <a href="http://www.turkishdailynews.com.tr/article.php?enewsid=112989"> + # http://www.turkishdailynews.com.tr/article.php?enewsid=112989 + # </a> + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Turkey 1916 only - May 1 0:00 1:00 S Rule Turkey 1916 only - Oct 1 0:00 0 - diff -r -c old/southamerica new/southamerica *** old/southamerica Mon Jul 7 09:51:38 2008 --- new/southamerica Sun Sep 7 15:42:41 2008 *************** *** 1,4 **** ! # @(#)southamerica 8.26 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)southamerica 8.27 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 164,172 **** # From Paul Eggert (2007-12-22): # For dates after mid-2008, the following rules are my guesses and # are quite possibly wrong, but are more likely than no DST at all. 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 Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing --- 164,185 ---- # From Paul Eggert (2007-12-22): # For dates after mid-2008, the following rules are my guesses and # are quite possibly wrong, but are more likely than no DST at all. + + # From Alexander Krivenyshev (2008-09-05): + # As per message from Carlos Alberto Fonseca Arauz (Nicaragua), + # Argentina will start DST on Sunday October 19, 2008. + # + # <a href="http://www.worldtimezone.com/dst_news/dst_news_argentina03.html"> + # http://www.worldtimezone.com/dst_news/dst_news_argentina03.html + # </a> + # OR + # <a href="http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish)"> + # http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) + # </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>=15 0:00 1:00 S # From Mariano Absatz (2004-05-21): # Today it was officially published that the Province of Mendoza is changing *************** *** 591,596 **** --- 604,639 ---- # Decretos sobre o Horario de Verao no Brasil # </a>. + # From Steffen Thorsen (2008-08-29): + # As announced by the government and many newspapers in Brazil late + # yesterday, Brazil will start DST on 2008-10-19 (need to change rule) and + # it will end on 2009-02-15 (current rule for Brazil is fine). Based on + # past years experience with the elections, there was a good chance that + # the start was postponed to November, but it did not happen this year. + # + # It has not yet been posted to http://pcdsh01.on.br/DecHV.html + # + # An official page about it: + # <a href="http://www.mme.gov.br/site/news/detail.do?newsId=16722"> + # http://www.mme.gov.br/site/news/detail.do?newsId=16722 + # </a> + # Note that this link does not always work directly, but must be accessed + # by going to + # <a href="http://www.mme.gov.br/first>" + # http://www.mme.gov.br/first + # </a> + # + # One example link that works directly: + # <a href="http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemi…"> + # http://jornale.com.br/index.php?option=com_content&task=view&id=13530&Itemi… + # (Portuguese) + # </a> + # + # We have a written a short article about it as well: + # <a href="http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html"> + # http://www.timeanddate.com/news/time/brazil-dst-2008-2009.html + # </a> + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S # Decree <a href="http://pcdsh01.on.br/HV20466.htm">20,466</a> (1931-10-01) # Decree <a href="http://pcdsh01.on.br/HV21896.htm">21,896</a> (1932-01-10) *************** *** 724,731 **** Rule Brazil 2007 only - Feb 25 0:00 0 - # Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26), # adopted by the same states as before. ! Rule Brazil 2007 max - Oct Sun>=8 0:00 1:00 S Rule Brazil 2008 max - Feb Sun>=15 0:00 0 - # The latest ruleset listed above says that the following states observe DST: # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. # For dates after mid-2008, the above rules with TO="max" are guesses --- 767,775 ---- Rule Brazil 2007 only - Feb 25 0:00 0 - # Decree <a href="http://pcdsh01.on.br/DecHV6212.gif">6,212</a> (2007-09-26), # adopted by the same states as before. ! Rule Brazil 2007 only - Oct Sun>=8 0:00 1:00 S Rule Brazil 2008 max - Feb Sun>=15 0:00 0 - + Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S # The latest ruleset listed above says that the following states observe DST: # DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP. # For dates after mid-2008, the above rules with TO="max" are guesses

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tzdata2008f.tar.gz
by Olson, Arthur David (NIH/NCI) [E] Sept. 15, 2008

Sept. 15, 2008

The file... ftp://elsie.nci.nih.gov/pub/tzdata2008f.tar.gz ...is now available; it reflects changes circulated last week on the time zone mailing list. There may be another update soon to reflect the "perennial" changes to Brazil that appeared last week on the list. --ado

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TZ time zone shapefile
by Jesper Norgaard Welen Sept. 15, 2008

Sept. 15, 2008

Eric Muller wrote: "To my knowledge, there is not yet a publicly available shapefile that covers all the tz timezones, but there are shapefiles that cover "modern" time zones." World Time Explorer (a Windows program that I made) includes a shapefile that is including all tz timezones. Additionally, it contains a DBF file for the shapefile that both represents the names of the shapes, but also connects each shape to WTE's own timezones. Note that often a given timezone spans many little pieces since the land surface is split into many islands. The only problem of mapping the tz timezones to the WTE timezones is just the naming convention, for instance the tz timezone Europe/Uzhgorod is in WTE "Ukraine, Uzhgorod". In most cases this should be straightforward, but some might need a little bit of "digging". Timezones are present in the city.txt file with an "@" in front, and represents the subsequent cities not having an "@" in front. You can use WTE to calculate the map colors for any given time since 1850 till today, where each color represents a given GMT offset. There is an example of how this looks like here: HYPERLINK "http://www.worldtimeexplorer.com/WorldMapBig.gif"http://www.worldtimeexplor er.com/WorldMapBig.gif but also note that calculating the colors is only activated when you have a full (paid) license. On the other hand I consider the shapefile to be publicly available, although I have not supplied it with a proper GNU free license or similar license. P.S: I use "timezone" instead of "time zone" deliberately, although I perhaps agree that "time zone" is better English grammar. One reason is that the Danish language would always put together the words to a single word with a new independent meaning, in Danish "time zone" is "tidszone". But also it is clear that a Google search for "time zone" gives a whole lot of hits for articles referring to time and another pile of hits referring to zone, which really have nothing to do with "time zone". Just my 2 cents. Regards, - Jesper Nørgaard Welen 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: 270.6.21/1667 - Release Date: 2008-09-11 18:55

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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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FW: timezone for Europe/Kiev
by Olson, Arthur David (NIH/NCI) [E] Sept. 13, 2008

Sept. 13, 2008

I'm forwarding this message from Oleg Kravchenko, who is not on the time zone mailing list. Those of you who are on the list: please direct replies appropriately. --ado -----Original Message----- From: Oleg Kravchenko [mailto:oleg@kaa.org.ua] Sent: Friday, September 12, 2008 5:36 To: tz(a)lecserver.nci.nih.gov Subject: timezone for Europe/Kiev I have invalid time shift for my city Kiev - +3 Additional information http://bugs.gentoo.org/show_bug.cgi?id=236419

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timezone for Europe/Kiev
by Oleg Kravchenko Sept. 12, 2008

Sept. 12, 2008

I have invalid time shift for my city Kiev - +3 Additional information http://bugs.gentoo.org/show_bug.cgi?id=236419

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Subscribe to the time zone mailing list
by jacquie＠entropy.cc Sept. 12, 2008

Sept. 12, 2008

Hi, How do I go about subscribing to the time zone mailing list? Here is a link to the "Sources for Time Zone and Daylight Saving Time Data" where it talks about subscribing to the time zone mailing list: http://www.twinsun.com/tz/tz-link.htm Our company would like to receive time zone updates that affect our zoneinfo files. Thank you for any assistance. Jacquie Behling Entropy Multimedia, Inc. 309 S. Barstow Street Eau Claire, WI 54701 (715) 855-0558 x-27

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Caracas (Venezuela)
by Daniel Sept. 11, 2008

Sept. 11, 2008

Hi, I'm just writting to you because there is an error in the hour of Caracas (Venezuela). There is 30 minutes more than you have in the time. Please correct it. Thank you.

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Olsen DB implementation issues
by Ian Davies Sept. 10, 2008

Sept. 10, 2008

Greetings, Any assistance and/or further leads on this matter would be greatly appreciated. I have some issues with implementing DST rules from the Olsen DB via the data fetched from the JRE 6.0 Olsen says that DST change in Central Europe is at 1am, however in Germany and all other countries in this time zone convention says it is always at 3am, when the time moves to 2am Central European Time [Europe/Paris, UTC+1hrs] Olsen/JRE DST end rule >>>> Last Sunday of Oct at 0100 hrs MicroSoft DST end rule >>>> 26/10/2008 03:00 (apparently correct also) This appears to be the Olsen DB in error, or are the Olsen times actually in UTC? This would explain as at that time UTC 0100 would in fact be CET 0300 at the point when CET is rolled back one hour? Best regards, Ian Davies ------------------------------------------------- Ian Davies Manager, Internationalisation & Localisation PartyGaming iand(a)partygaming.com Yahoo! IM: ianbingofish Mobile: +34 687898027 Office +350 200 78700 ext7060 http://www.partygaming.com <http://www.partygaming.com/> ------------------------------------------------- ------------------------------------------------- Ian Davies Product Manager, Internationalisation PartyGaming iand(a)partygaming.com Yahoo! IM: ianbingofish Mobile: +34 687898027 Office +350 200 78700 ext7060 http://www.partygaming.com <http://www.partygaming.com/> -------------------------------------------------

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Brazil changes - new "perennial" DST rules
by Frederico A C Neves Sept. 10, 2008

Sept. 10, 2008

Acording to this decree http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm The DST period in Brazil now on will be from the 3rd Oct Sunday to the 3rd Feb Sunday. There is an exception on the return date when this is the Carnival Sunday then the return date will be the next Sunday. Attached proposed diffs for the current Southamerica file and a script to calculate the exceptions. Regards, Frederico Neves

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Uncertain usage/scope of a possibly standard timezone name 'MEZ-1MSZ'
by Stephen A Hellberg Sept. 10, 2008

Sept. 10, 2008

Hello, I'm not a member of the distribution list, although I believe my enquiry is covered by its scope, and I wonder whether you might be able to circulate my enquiry (and return any replies) as my own research has failed to identify an answer. I'm trying to service a request to recognise the standard timezone name of 'MEZ-1MSZ', but I've so far not found any documentation to support or define the scope if this is an acceptable POSIX TZ value and a standard timezone name. The suggestion has been made that MSZ is a widely(?) employed alias (in some region(s) of the Gernan speaking world?) for MESZ that is standardly defined for "Mitteleuropäische Sommerzeit" (GMT+0200); MEZ being an accepted acronym for "Mitteleuropäische Zeit". And, I whilst I can find instances for the use of the standard(?) 'MEZ-1MSZ-2' I have been unsuccessful in locating any equivalence for 'MEZ-1MSZ' itself. Is MSZ equivalent and a widely accepted acronym matching MESZ, and if so where and how typical is its use? How does it differ to the 'MEZ-1MSZ-2' standard? Can you/anyone advise on the practice of employing 'MEZ-1MSZ' as a POSIX TZ value or indeed how prevalent its use is, or in which region (likely related to honouring DST somewhere in the vicinity of Berlin?) and whether this is directly equivalent to other common/standard names, such as CET-1CEST? What should its Olson equivalent be? (Whilst my inconclusive researches have been more extensive, support for the above statement appears available readily here (amongst other places): http://www.timeanddate.com/library/abbreviations/timezones/eu/cet.html http://www.timeanddate.com/library/abbreviations/timezones/eu/cest.html http://www.all-acronyms.com/special/time_zone_acronyms_and_abbreviations.asp http://de.wikipedia.org/wiki/Zeitzone ) Thank you in anticipation, Stephen --- Stephen Hellberg Java L3 Service, IBM Hursley Email: hellbes(a)uk.ibm.com Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

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Database
by Bruce E. McCormick Sept. 9, 2008

Sept. 9, 2008

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Geographical extent of some tz timezones
by Eric Muller Sept. 9, 2008

Sept. 9, 2008

I am trying to clarify the geographical extent of tz timezones. For the most part, the data files provide this information, but there are a few cases which are not entirely clear. Here are a few questions; once we figure out the answers, I'll be happy to propose updates to the tz files to capture the results (in comments, of course). Thanks in advance, Eric. --- Democratic Republic of Congo. Is it correct that: The zone Africa/Kinshasa covers the (pre-2009) provinces of Bas-Congo, Kinshasa, Bandundu, and Equateur. The zone Africa/Lubumbashi covers the remainder of the Democratic Republic of Congo. ---- Kazakhstan, using the names at <http://en.wikipedia.org/wiki/Kazakstan#Provinces>. Is it correct that: Asia/Almaty = Kostanay, Karagandy, South Kaz and everything east of them Asia/Qyzylorda = Kyzylorda Asia/Aqtobe = Aktobe Asia/Aqtau = Mangystau Asia/Oral = West Kazakhstan The Atyrau province is not mentioned explictly, and given its location, it should be in one of the last three time zones, but which one? --- Indonesia. Is it correct that: Asia/Jakarta is the island of Sumatra, the island of Java. Asia/Pontianak is the provinces of West Kalimantan (Kalimantan Barat) and Central Kalimantan (Kalimantan Tengah). Asia/Makassar is the island of Sulawesi, the Lesser Sunda islands (Bali, East Nusa Tenggara, West Nusa Tenggara), the provinces of East Kalimantan, South Kalimantan. Asia/Jayapura is the provinces of Maluku, North Maluku, Papua and West Papua. --- Uzbekistan. What is the boundary between Asia/Samarkand and Asia/Tashkent? --- Marshall Islands. What is the division into Pacific/Majuro and Pacific/Kwajalein? is the later just the Kwajalein island, as this 1993 NY Times article suggests? <http://query.nytimes.com/gst/fullpage.html?res=9F0CE1D6163EF931A1575BC0A965…> --- Ukraine: what is the division of Ukraine in its four time zones, preferably in terms of the administrative divisions (e.g. <http://en.wikipedia.org/wiki/Administrative_divisions_of_Ukraine>)? --- Spain: Does the Africa/Ceuta timezone apply to all the "Plazas de soberania" or just to Ceuta proper? If the later, what is the time zone for the other places? (See <http://en.wikipedia.org/wiki/Plaza_de_soberan%C3%ADa> for a map.) --- China: the descriptions of Asia/Chongqing and Asia/Urumqui both include "west Qinghai". Shouldn't it be "east Qinghai" for Asia/Chongqing? The Asia/Urumqi zone is described as including counties of Guangdong. That seems awfully far to the east of the other areas included in that time zone. Inner Mongolia is divided between Asia/Chongqing and Asia/Shanghai. What is the division in terms of the administrative regions at <http://en.wikipedia.org/wiki/List_of_administrative_divisions_of_Inner_Mong…>? Tibet and Xinjiang are divided between Asia/Urumqi and Asia/Kashgar. What is their division in terms of the administrative regions at <http://en.wikipedia.org/wiki/List_of_administrative_divisions_of_Tibet_Auto…> and <http://en.wikipedia.org/wiki/List_of_administrative_divisions_of_Xinjiang>? --- Greenland and Antartica: what would good areas for the zones? Should they be narrow (i.e. around "inhabited" places) or wide (i.e. form a partition of the land)? --- PS. I am still nibbling at a shapefile of tz timezones for the world, which I will make available eventually. Right now, I managed to reconstruct the bulk of it from the VMAP0 data, and thereby establish a clear traceability of the map.

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Argentina will start DST on Sunday October 19, 2008
by Alexander Krivenyshev Sept. 5, 2008

Sept. 5, 2008

As per message from Carlos Alberto Fonseca Arauz (Nicaragua), Argentina will start DST on Sunday October 19, 2008. http://www.worldtimezone.com/dst_news/dst_news_argentina03.html OR http://www.impulsobaires.com.ar/nota.php?id=57832 (in spanish) Regards, Alexander Krivenyshev, http://www.WorldTimeZone.com

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