November 2007 - tz - lists.iana.org

proposed tz changes for Brazil, Egypt, Iran, Gaza, Venezuela
by Paul Eggert Nov. 7, 2007

Nov. 7, 2007

Here are proposed changes to the tz database for the news items we've accumulated recently: * Brazil will observe DST from 2007-10-14 00:00 to 2008-02-17 00:00. (Thanks to Steffen Thorsen for this.) * Egypt switched earlier than we expected. (Thanks to Dirk Losch and Jesper Norgaard Welen for this.) * Likewise for Gaza. (Thanks to Jesper Norgaard Welen for this.) * Iran will resume DST next year. (Thanks to Jesper Norgaard Welen for this.) * Venezuela is currently planning to change time zones on January 1, to -04:30. This seems to be a bit disorganized, but I suppose we can change the database later as needed. =================================================================== RCS file: RCS/africa,v retrieving revision 2007.7 retrieving revision 2007.7.0.1 diff -pu -r2007.7 -r2007.7.0.1 --- africa 2007/08/20 14:45:10 2007.7 +++ africa 2007/09/07 22:39:16 2007.7.0.1 @@ -224,9 +224,19 @@ Rule Egypt 2006 only - Sep 21 23:00s 0 - # From Jesper Norgaard Welen (2007-08-15): [The following agree:] # http://www.nentjes.info/Bill/bill5.htm # http://www.timeanddate.com/worldclock/city.html?n=53 +# From Steffen Thorsen (2007-09-04): The official information...: +# http://www.sis.gov.eg/En/EgyptOnline/Miscellaneous/000002/02070000000000000… +Rule Egypt 2007 only - Sep Thu>=1 23:00s 0 - +# From Abdelrahman Hassan (2007-09-06): +# Due to the Hijri (lunar Islamic calendar) year being 11 days shorter +# than the year of the Gregorian calendar, Ramadan shifts earlier each +# year. This year it will be observed September 13 (September is quite +# hot in Egypt), and the idea is to make fasting easier for workers by +# shifting business hours one hour out of daytime heat. Consequently, +# unless discontinued, next DST may end Thursday 28 August 2008. # From Paul Eggert (2007-08-17): -# For lack of better info, assume the new rule is first Thursday. -Rule Egypt 2007 max - Sep Thu>=1 23:00s 0 - +# For lack of better info, assume the new rule is last Thursday in August. +Rule Egypt 2008 max - Aug lastThu 23:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Cairo 2:05:00 - LMT 1900 Oct =================================================================== RCS file: RCS/asia,v retrieving revision 2007.5 retrieving revision 2007.5.0.1 diff -pu -r2007.5 -r2007.5.0.1 --- asia 2007/04/02 14:10:56 2007.5 +++ asia 2007/09/20 22:44:02 2007.5.0.1 @@ -568,14 +568,15 @@ Zone Asia/Jayapura 9:22:48 - LMT 1932 No # Reingold's/Dershowitz' calculator gives correctly the Gregorian date # 2058-03-21 for 1 Farvardin 1437 (astronomical). # -# From Paul Eggert (2006-03-22): -# The above comments about post-2006 transitions may become relevant again, -# if Iran ever resuscitates DST, so we'll leave the comments in. -# # From Steffen Thorsen (2006-03-22): # Several of my users have reported that Iran will not observe DST anymore: # http://www.irna.ir/en/news/view/line-17/0603193812164948.htm # +# From Reuters (2007-09-16), with a heads-up from Jesper Norgaard Welen: +# ... the Guardian Council ... approved a law on Sunday to re-introduce +# daylight saving time ... +# http://uk.reuters.com/article/oilRpt/idUKBLA65048420070916 +# # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Iran 1978 1980 - Mar 21 0:00 1:00 D Rule Iran 1978 only - Oct 21 0:00 0 S @@ -596,6 +597,36 @@ Rule Iran 2004 only - Mar 21 0:00 1:00 D Rule Iran 2004 only - Sep 21 0:00 0 S Rule Iran 2005 only - Mar 22 0:00 1:00 D Rule Iran 2005 only - Sep 22 0:00 0 S +Rule Iran 2008 only - Mar 21 0:00 1:00 D +Rule Iran 2008 only - Sep 21 0:00 0 S +Rule Iran 2009 2011 - Mar 22 0:00 1:00 D +Rule Iran 2009 2011 - Sep 22 0:00 0 S +Rule Iran 2012 only - Mar 21 0:00 1:00 D +Rule Iran 2012 only - Sep 21 0:00 0 S +Rule Iran 2013 2015 - Mar 22 0:00 1:00 D +Rule Iran 2013 2015 - Sep 22 0:00 0 S +Rule Iran 2016 only - Mar 21 0:00 1:00 D +Rule Iran 2016 only - Sep 21 0:00 0 S +Rule Iran 2017 2019 - Mar 22 0:00 1:00 D +Rule Iran 2017 2019 - Sep 22 0:00 0 S +Rule Iran 2020 only - Mar 21 0:00 1:00 D +Rule Iran 2020 only - Sep 21 0:00 0 S +Rule Iran 2021 2023 - Mar 22 0:00 1:00 D +Rule Iran 2021 2023 - Sep 22 0:00 0 S +Rule Iran 2024 only - Mar 21 0:00 1:00 D +Rule Iran 2024 only - Sep 21 0:00 0 S +Rule Iran 2025 2027 - Mar 22 0:00 1:00 D +Rule Iran 2025 2027 - Sep 22 0:00 0 S +Rule Iran 2028 2029 - Mar 21 0:00 1:00 D +Rule Iran 2028 2029 - Sep 21 0:00 0 S +Rule Iran 2030 2031 - Mar 22 0:00 1:00 D +Rule Iran 2030 2031 - Sep 22 0:00 0 S +Rule Iran 2032 2033 - Mar 21 0:00 1:00 D +Rule Iran 2032 2033 - Sep 21 0:00 0 S +Rule Iran 2034 2035 - Mar 22 0:00 1:00 D +Rule Iran 2034 2035 - Sep 22 0:00 0 S +Rule Iran 2036 2037 - Mar 21 0:00 1:00 D +Rule Iran 2036 2037 - Sep 21 0:00 0 S # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Asia/Tehran 3:25:44 - LMT 1916 3:25:44 - TMT 1946 # Tehran Mean Time @@ -1518,6 +1549,17 @@ Zone Asia/Karachi 4:28:12 - LMT 1907 # I guess it is likely that next year's date will be moved as well, # because of the Ramadan. +# From Jesper Norgaard Welen (2007-09-18): +# According to Steffen Thorsen's web site the Gaza Strip and the rest of the +# Palestinian territories left DST early on 13.th. of September at 2:00. + +# From Paul Eggert (2007-09-20): +# My understanding is that Gaza and the West Bank disagree even over when +# the weekend is (Thursday+Friday versus Friday+Saturday), so I'd be a bit +# surprised if they agreed about DST. But for now, assume they agree. +# For lack of better information, predict that future changes will be +# the 2nd Thursday of September at 02:00. + # 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 @@ -1533,7 +1575,7 @@ Rule Palestine 2004 only - Oct 1 1:00 0 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 - Oct Fri>=15 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 =================================================================== RCS file: RCS/southamerica,v retrieving revision 2007.4 retrieving revision 2007.4.0.1 diff -pu -r2007.4 -r2007.4.0.1 --- southamerica 2007/03/20 12:48:12 2007.4 +++ southamerica 2007/09/27 20:14:56 2007.4.0.1 @@ -424,6 +424,10 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # modern Brazilian eletronic voting machines which, apparently, can't deal # with a time change between the first and the second rounds of the elections. +# From Steffen Thorsen (2007-09-20): +# Brazil will start DST on 2007-10-14 00:00 and end on 2008-02-17 00:00: +# http://www.mme.gov.br/site/news/detail.do;jsessionid=BBA06811AFCAAC28F02852… + # From Paul Eggert (2002-10-10): # The official decrees referenced below are mostly taken from # <a href="http://pcdsh01.on.br/DecHV.html"> @@ -557,13 +561,18 @@ Rule Brazil 2004 only - Nov 2 0:00 1:0 # Decree <a href="http://pcdsh01.on.br/DecHV5539.gif">5,539</a> (2005-09-19), # adopted by the same states as before. Rule Brazil 2005 only - Oct 16 0:00 1:00 S -# Decree <a href="http://www.planalto.gov.br/ccivil_03/_Ato2004-2006/2006/Decreto/D5920.htm">5,920</a> -# (2006-10-03), adopted by the same states as before. -Rule Brazil 2006 max - Nov Sun>=1 0:00 1:00 S -Rule Brazil 2007 max - Feb lastSun 0:00 0 - +# Decree <a href="http://pcdsh01.on.br/DecHV5920.gif">5,920</a> (2006-10-03), +# adopted by the same states as before. +Rule Brazil 2006 only - Nov 5 0:00 1:00 S +Rule Brazil 2007 only - Feb 25 0:00 0 - +# (Decree number not yet known) +# http://www.brasil.gov.br/noticias/ultimas_noticias/horario_verao070920/ +# (2007-09-20) after a heads-up from Steffen Thorsen: +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-2007, the above rules with TO="max" are guesses +# 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. @@ -1097,8 +1106,20 @@ Zone America/Montevideo -3:44:44 - LMT 1 -3:00 Uruguay UY%sT # Venezuela +# +# From Kiraz Janicke (2007-09-25), in +# http://www.venezuelanalysis.com/analysis/2645: +# The proposal ... involves turning the clock back half an hour from +# +4.00 Greenwich Mean Time (GMT), to +4.30GMT, the time zone +# Venezuela had until December 31, 1964, when the current time zone +# was adopted. The change was due to take place on September 17 and +# then on September 24, but has since been postponed until December +# 31, to allow for compliance with international organizations, such +# as the International Office of Weights and Measures. + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Caracas -4:27:44 - LMT 1890 -4:27:40 - CMT 1912 Feb 12 # Caracas Mean Time? -4:30 - VET 1965 # Venezuela Time - -4:00 - VET + -4:00 - VET 2008 + -4:30 - VET

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FW: Australian time zone names
by Olson, Arthur David (NIH/NCI) [E] Nov. 2, 2007

Nov. 2, 2007

I'm forwarding this message from Mark Jerkovic, who is not on the time zone mailing list. Those of you who are on the time zone list should direct replies appropriately. --ado From: Mark Jerkovic [mailto:mjerkovic@aconex.com] Sent: Thursday, November 01, 2007 7:24 PM To: tz(a)lecserver.nci.nih.gov Subject: Australian time zone names Hi, I would like to propose an amendment to the format of Australian timezones. Currently the format is EST for eastern states and WST for western states. This is incorrect. The Australian Government defines time zone names as follows: Time Zones There are three times zones in Australia - Eastern Australian Eastern Standard Time (AEST) is equal to Greenwich Mean Time plus 10 hours (GMT +10). AEST is followed in these regions: • New South Wales (except Broken Hill) • Victoria • Queensland • Tasmania • Australian Capital Territory Central Australian Central Standard Time (ACST) is equal to Greenwich Mean Time plus 9 ½ hours (GMT +9 ½). ACST is followed in these regions: • South Australia • Northern Territory • Broken Hill, NSW Western Australian Western Standard Time (AWST) is equal to Greenwich Mean Time plus 8 hours (GMT +8). AWST is followed in these regions: • Western Australia Daylight Saving Daylight saving time is observed by New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory from early to late October to the end of March. Western Australia began a three year trial of daylight saving on 3 December 2006. Queensland and the Northern Territory do not observe daylight savings. Where daylight saving is being observed: • AEST becomes Australian Eastern Daylight Time (AEDT), and clocks are advanced to GMT +11. • ACST becomes Australian Central Daylight Time (ACDT), and clocks are advanced to GMT +10 ½. • AWST becomes Australian Western Daylight Time (AWDT), and clocks are advanced to GMT +9. The link where this came from is http://www.australia.gov.au/Time_Zones Could these naming conventions be added to the timezone database? Thanks, Mark. Mark Jerkovic Senior Software Engineer Aconex The easy way to save time and money on your project Level 1, 696 Bourke Street, Melbourne VIC 3000, Australia Tel: +61 3 9240 0200 Fax: +61 3 9240 0299 Email: mjerkovic(a)aconex.com www.aconex.com This email and any attachments are intended solely for the addressee. The contents may be privileged, confidential and/or subject to copyright or other applicable law. No confidentiality or privilege is lost by an erroneous transmission. If you have received this e-mail in error, please let us know by reply e-mail and delete or destroy this mail and all copies. If you are not the intended recipient of this message you must not disseminate, copy or take any action in reliance on it. The sender takes no responsibility for the effect of this message upon the recipient's computer system.

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HST vs. HAST
by Bill Seymour Nov. 2, 2007

Nov. 2, 2007

A newbie question that could have an answer similar to the recent question about Australian time zones... I note that Pacific/Honolulu and Pacific/Johnston say HST rather than HAST; but America/Adak says HA%sT. Is there a reason for leaving out the 'A' for Hawaii and Johnston Atoll? Thanks, --Bill Seymour

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Australian time zone names
by Mark Jerkovic Nov. 1, 2007

Nov. 1, 2007

Hi, I would like to propose an amendment to the format of Australian timezones. Currently the format is EST for eastern states and WST for western states. This is incorrect. The Australian Government defines time zone names as follows: Time Zones There are three times zones in Australia - Eastern Australian Eastern Standard Time (AEST) is equal to Greenwich Mean Time plus 10 hours (GMT +10). AEST is followed in these regions: * New South Wales (except Broken Hill) * Victoria * Queensland * Tasmania * Australian Capital Territory Central Australian Central Standard Time (ACST) is equal to Greenwich Mean Time plus 9 ½ hours (GMT +9 ½). ACST is followed in these regions: * South Australia * Northern Territory * Broken Hill, NSW Western Australian Western Standard Time (AWST) is equal to Greenwich Mean Time plus 8 hours (GMT +8). AWST is followed in these regions: * Western Australia Daylight Saving Daylight saving time is observed by New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory from early to late October to the end of March. Western Australia began a three year trial of daylight saving on 3 December 2006. Queensland and the Northern Territory do not observe daylight savings. Where daylight saving is being observed: * AEST becomes Australian Eastern Daylight Time (AEDT), and clocks are advanced to GMT +11. * ACST becomes Australian Central Daylight Time (ACDT), and clocks are advanced to GMT +10 ½. * AWST becomes Australian Western Daylight Time (AWDT), and clocks are advanced to GMT +9. The link where this came from is http://www.australia.gov.au/Time_Zones Could these naming conventions be added to the timezone database? Thanks, Mark. Mark Jerkovic Senior Software Engineer Aconex The easy way to save time and money on your project Level 1, 696 Bourke Street, Melbourne VIC 3000, Australia Tel: +61 3 9240 0200 Fax: +61 3 9240 0299 Email: mjerkovic(a)aconex.com www.aconex.com This email and any attachments are intended solely for the addressee. The contents may be privileged, confidential and/or subject to copyright or other applicable law. No confidentiality or privilege is lost by an erroneous transmission. If you have received this e-mail in error, please let us know by reply e-mail and delete or destroy this mail and all copies. If you are not the intended recipient of this message you must not disseminate, copy or take any action in reliance on it. The sender takes no responsibility for the effect of this message upon the recipient's computer system.

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FW: London (GMT) notation self-conflicts
by Olson, Arthur David (NIH/NCI) [E] Nov. 1, 2007

Nov. 1, 2007

I'm forwarding this message from Paul Bruin, who is not on the time zone mailing list. Those of you who are on the time zone mailing list should direct replies appropriately. --ado From: BRUIN Paul [mailto:pbruin@miranda.com] Sent: Wednesday, October 31, 2007 11:58 To: tz(a)lecserver.nci.nih.gov Subject: London (GMT) notation self-conflicts Hello, My company's application servers use the Olson database as a time zone reference. The following listings appear, which I believe are so-named in the Olson database: London (Greenwich Mean Time) Belfast (Greenwich Mean Time) Dublin (Greenwich Mean Time) These notations are correct only in winter, when all three cities are on GMT. But in Summer, these cities are GMT+1. This means that in summer, there is a conflict within the notation. Note that this conflict does not arise for cities outside the United Kingdom. Taking Paris (Central European Time) as an example, Paris time and Central European Time are always the same, irrespective of the extra hour of Daylight Savings offset from GMT in summer. To fix this, "Greenwich Mean Time" should be removed from the notation for London, Belfast and Dublin. It might be replaced by "United Kingdom Time," "British Isles Time" or "British Time." Does this conflicting notation indeed exist in the Olson database and, if so, can it be fixed? Thanks for your help, Paul Bruin pbruin(a)miranda.com 415-924-8702 (office) 415-706-0442 (cell) 17 Skylark Drive, #39 Larkspur, CA 94939 U.S.A.

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tzdata2007i.tar.gz
by Olson, Arthur David (NIH/NCI) [E] Nov. 1, 2007

Nov. 1, 2007

The file... ftp://elsie.nci.nih.gov/pub/tzdata2007i.tar.gz ...is now available; this reflects changes for Cuba and Syria circulated earlier this week on the time zone mailing list. There are no code changes, so there's no tzcode2007i; tzcood2007h remains current. --ado

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