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proposed changes to "southamerica" file
by Arthur David Olson Sept. 29, 2008

Sept. 29, 2008

Here are proposed changes to the "southamerica" file to reflect changes in Brazilian DST and to fix a bad bit of HTML. If there are no problems, expect an update to the ftp files on 2008-10-06. --ado ------- southamerica ------- *** /tmp/geta21140 Mon Sep 29 11:12:40 2008 --- /tmp/getb21140 Mon Sep 29 11:12:40 2008 *************** *** 1,4 **** ! # @(#)southamerica 8.27 # <pre> # This data is by no means authoritative; if you think you know better, --- 1,4 ---- ! # @(#)southamerica 8.29 # <pre> # This data is by no means authoritative; if you think you know better, *************** *** 619,625 **** # </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> # --- 619,625 ---- # </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> # *************** *** 768,779 **** # 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 - # and are quite possibly wrong, but are more likely than no DST at all. # Zone NAME GMTOFF RULES FORMAT [UNTIL] # --- 768,800 ---- # 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 ! # From Frederico A. C. Neves (2008-09-10): ! # Acording to this decree ! # <a href="http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm"> ! # http://www.planalto.gov.br/ccivil_03/_Ato2007-2010/2008/Decreto/D6558.htm ! # </a> ! # [t]he 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... ! Rule Brazil 2008 max - Oct Sun>=15 0:00 1:00 S ! 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 - ! # From Arthur David Olson (2008-09-29): ! # The next is wrong in some years but is better than nothing. ! Rule Brazil 2038 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. # Zone NAME GMTOFF RULES FORMAT [UNTIL] #

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Australian time zones are not displaying correct short timezone name for DST
by Anita.M.Lewis＠jci.com Sept. 29, 2008

Sept. 29, 2008

I am emailing a request for a correction to the timezone data. We have customers reporting this issue. Sun Microsystems has suggested I contact your organization directly with this request. Thank you for your consideration. A DESCRIPTION OF THE PROBLEM : Australian time zones are not displaying correct short timezone name for DST, i.e., EDT vs EST and CDT vs CST. _________________________________ Anita M. Lewis Senior Software Engineer Metasys User Experience Building Efficiency Johnson Controls 507 E. Michigan St. M36 Milwaukee, WI 53201-0423 Tel : (414)524-5950 Fax : (414)524-5810 Email : anita.m.lewis(a)jci.com

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southamerica
by hsv＠tbbs.net Sept. 29, 2008

Sept. 29, 2008

I find this bit of bad anchor-formatting in "southamerica": diff new/southame data/southame 622c622 < # <a href="http://www.mme.gov.br/first>" --- > # <a href="http://www.mme.gov.br/first">

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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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