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Re: no changes for 3 russian regions at this point
by Ruslan Ermilov Sept. 11, 2011

Sept. 11, 2011

Alexander Krivenyshev wrote: > Olson, Arthur David (NIH/NCI) [E] <olsona <at> > dc37a.nci.nih.gov> writes: > > > > > The latest 2011i tzdata does not have the Russian time > > > > change described by Alexander Krivenyshev: > > > "DRAFT DECISION OF THE GOVERNMENT OF Russian Federation... > > > > Does anyone know the current status of what was a draft > > decision at the time of Alexander's report? > > After some extensive media reports that 3 Russian regions may > change time zones this autumn and FIRST DRAFT DECISION OF THE > GOVERNMENT OF Russian Federation on August 8, 2011 about > upcoming changes on October 30, 2011: see link below: > (http://www.worldtimezone.com/dst_news/dst_news_russia33.html) > > there were some corrections done on August 25, 2011 on DRAFT > DECISION OF THE GOVERNMENT OF Russian Federation "On the > composition of the territories that make up each time zone, and > the procedure of calculation of time within time zones, and the > repeal of certain resolutions of the Government of the Russian > Federation", which shows NO time zones changes at this point > for Vladivostok (Primorsky region), Irkutsk region and Sakha > (Yakutia) will keep its current 3 time zones (MSK +6, +7, +8): > > 1. Vladivostok (Primorsky region) – will keep MSK+7 (UTC+11) > > 2. Sakha (Yakutia) – will keep its current 3 time zones: > MSK+6 (UTC+10), MSK+7 (UTC+11), MSK+8 (UTC+12) and > > 3. Irkutsk region – will keep MSK+5 (UTC+9) > > Original document (in Russian) on: > http://www.minpromtorg.gov.ru/docs/projects/531 > or > > http://www.worldtimezone.com/dst_news/dst_news_russia35.html > > I will keep my eyes open if there is any changes by October 30, > 2011. A final decision was made by Russian government on August 31, 2011, no. 725 (text in Russian): http://www.government.ru/gov/results/16355/ The contents of time zones didn't change since the draft.

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Datasource for IATA timezone files
by Karl Erik Bergaust Sept. 11, 2011

Sept. 11, 2011

Hi. Regarding Sources for Time Zone and Daylight Saving Time Data http://www.twinsun.com/tz/tz-link.htm International Air Transport Association timezone rules, are obtained from Innovata. http://www.innovata-llc.com/data/data.html ->> IATA Codes Data Files Regards Karl Erik

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Texas timezone history
by Jules Descartes Sept. 8, 2011

Sept. 8, 2011

I have reviewed the Texas timezone history before 1970. I attach my result, which proposes two additional Texas zones America/Houston and Amerca/Amarillo. I think there is an error in the current tzdata/northamerica file regarding Texas. It claims that Texas follows America/Chicago. But this is not the case as Texas had no DST in 1936, as Chicago did. Please check my data and my typing, as I am a bad typist.

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A small contribution to California timezone history
by Alois Treindl Sept. 8, 2011

Sept. 8, 2011

Calfornia, the US state with the highest population, seems to be one of the most regular timezone history, well represented by zone America/Los_Angeles. One exception has however been brought to my attention, which I report here, as a contribution to the completion of pre-1970 timezone history. # Information published to the Public Domain. # Palm Springs suffered under the shadow of Mt. San Jacinto and # decided to go on DST from 1946 Nov 17 for 120 days, # ending 1947 Mar 17. # Source: Beaver Valley Times, 1946 Nov 8, and other newspapers. # # Palm Springs is at 116w33. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Palm_Springs -7:36:12 - LMT 1883 Nov 18 12:23:48 -8:00 US P%sT 1946 Nov 17 02:00 -7:00 - PDT 1947 Mar 17 02:00 -8:00 CA P%sT 1967 -8:00 US P%sT

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re: Texas, typing corrections
by Jules Descartes Sept. 8, 2011

Sept. 8, 2011

Sorry I had several typing errors in the last paragraph of the attached file. I attach a corrected copy.

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Russian Time Zone
by Wong Ren Sept. 8, 2011

Sept. 8, 2011

Hi, The latest 2011i tzdata does not have the Russian time change described by Alexander Krivenyshev: "DRAFT DECISION OF THE GOVERNMENT OF Russian Federation "On the composition of the territories that make up each time zone, and the procedure of calculation of time within time zones, and the Repeal of certain resolutions of the Government of the Russian Federation on August 8, 2011" On October 30, 2011, at 02:00 local time the following new time calculations will be applied: Irkutsk region will use the 5th Russian time zone (MSK +4) Republic of Sakha (Yakutia) will use the 7th Russian time zone (MSK +6) Primorsky Krai (Vladivostok) will use the 7th Russian time zone (MSK +6)" It is not clear to me what's the exact impact for these additional changes to the original proposal . I have summarized what I think are the changes in the table below, could someone verify? TimeZone Current At 2011 Oct 30 2:00s Description Asia/Irkustsk GMT+9 (MSK+5) GMT+8 (MSK+4) Asia/Valdivostok GMT+11 (MSK+7) GMT+10(MSK+6) Asia/Yakulsk GMT+10 (MSK+6) GMT+10(MSK+6) No change. Republic of Sakha (Yakutia) ? Asia/Sakalin GMT+11 (MSK+7) GMT+10(MSK+6 Republic of Sakha (Yakutia) ? Asia/Magadan GMT+12 (MSK+8) GMT+10 (MSK+6) Republic of Sakha (Yakutia) ? Asia/Kamachatka GMT+12 (MSK+8) GMT+10 (MSK+6) Republic of Sakha (Yakutia) ? Asia/Anadyr GMT+12 (MSK+8) GMT+10 (MSK+6) Republic of Sakha (Yakutia) ? Essentially, GMT+9, GMT+11 and GMT+12 are entirely eliminated. Please confirm the above changes. Also based on the tzdata2011i, would the following changes apply? 2186d2185 < 8:00 - IRKT 2011 Oct 30 2:00s 2225,2226d2223 < 10:00 - VLAT 2011 Oct 30 2:00s < 2238,2239d2234 < 10:00 - SAKT 2011 Oct 30 2:00s < 2254d2248 < 10:00 - MAGT 2011 Oct 30 2:00s 2267d2260 < 10:00 - PETT 2011 Oct 30 2:00s 2278d2270 < 10:00 - ANAT 2011 Oct 30 2:00s ________________________________ "This e-mail message may contain confidential, commercial or privileged information that constitutes proprietary information of Comverse Technology or its subsidiaries. If you are not the intended recipient of this message, you are hereby notified that any review, use or distribution of this information is absolutely prohibited and we request that you delete all copies and contact us by e-mailing to: security(a)comverse.com. Thank You."

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Alabama timezone history
by Jules Descartes Sept. 6, 2011

Sept. 6, 2011

I have started reviewing pre-1970 US timezone history. The information is so complex that it is best approached state by state. I have started alphabetically with Alabama, but will probably continue with some mixture like - most populous states first - simplest states first For Alabama history my first draft proposes ten zones. This is more detailed than Shanks, wo distinguished seven areas. It is only a first step. Newspaper archive research (sadly) reveals that there are far more complex details involved in a complete history, and many questions about extension of zones can probably never be answered because there are not enough precise records. I have made a map, together with the help of colleagues, and uploaded it to wikimedia, as I am not sure whether image files work in this mailing list. Certainly we save bandwidth, as in the old times. License question: For now I have decided to place my work under the widest possible Creative Commons. This differs from the Public Domain license only in so far, as sources need to be quoted. Aside of that the use of the information is free, also within commercial projects of any kind. Please check and proof read the proposed zones. I am a bad typist.

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Gaza and West Bank back to daylight saving time after pause
by Steffen Thorsen Sept. 6, 2011

Sept. 6, 2011

Gaza and the West Bank did go back to standard time in the beginning of August, and will now enter daylight saving time again on 2011-08-30 00:00 (so two periods of DST in 2011). The pause was because of Ramadan. http://www.maannews.net/eng/ViewDetails.aspx?ID=416217 Additional info: http://www.timeanddate.com/news/time/palestine-dst-2011.html Best regards, Steffen Thorsen - timeanddate.com

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Thu moi den du hoi nghi nong nghiep tai tinh Kiet Lam
by Luong Van Hoa Sept. 5, 2011

Sept. 5, 2011

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proposed time zone package changes (Samoa, Kenya, Uganda, Tanzania)
by Arthur David Olson Sept. 3, 2011

Sept. 3, 2011

Below find proposed time zone package changes; the executive summary: africa Four instances of 2:44:45 changed to 2:45 (one in a comment, one each in zones Africa/Dar_es_Salaam, Africa/Kampala, Africa/Nairobi) (thanks to Jules Descartes) australasia Samoa uses DST in 2011-2012 (thanks to Laupue Raymond Hughes) The Samoa changes affect time stamps beginning later this month. I'm holding off on West Bank and Gaza changes pending further information and feedback. If no problems are found, these changes will show up on the ftp site on 2011-09-12. --ado diff -r -c old/africa new/africa *** old/africa Wed Aug 17 13:47:14 2011 --- new/africa Sat Sep 3 08:53:28 2011 *************** *** 1,5 **** # <pre> ! # @(#)africa 8.32 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)africa 8.33 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 58,64 **** # I invented the following abbreviations; corrections are welcome! # 2:00 WAST West Africa Summer Time # 2:30 BEAT British East Africa Time (no longer used) ! # 2:44:45 BEAUT British East Africa Unified Time (no longer used) # 3:00 CAST Central Africa Summer Time (no longer used) # 3:00 SAST South Africa Summer Time (no longer used) # 3:00 EAT East Africa Time --- 58,64 ---- # I invented the following abbreviations; corrections are welcome! # 2:00 WAST West Africa Summer Time # 2:30 BEAT British East Africa Time (no longer used) ! # 2:45 BEAUT British East Africa Unified Time (no longer used) # 3:00 CAST Central Africa Summer Time (no longer used) # 3:00 SAST South Africa Summer Time (no longer used) # 3:00 EAT East Africa Time *************** *** 396,402 **** Zone Africa/Nairobi 2:27:16 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1940 ! 2:44:45 - BEAUT 1960 3:00 - EAT # Lesotho --- 396,402 ---- Zone Africa/Nairobi 2:27:16 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1940 ! 2:45 - BEAUT 1960 3:00 - EAT # Lesotho *************** *** 971,977 **** # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 3:00 - EAT 1948 ! 2:44:45 - BEAUT 1961 3:00 - EAT # Togo --- 971,977 ---- # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Dar_es_Salaam 2:37:08 - LMT 1931 3:00 - EAT 1948 ! 2:45 - BEAUT 1961 3:00 - EAT # Togo *************** *** 1097,1103 **** Zone Africa/Kampala 2:09:40 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1948 ! 2:44:45 - BEAUT 1957 3:00 - EAT # Zambia --- 1097,1103 ---- Zone Africa/Kampala 2:09:40 - LMT 1928 Jul 3:00 - EAT 1930 2:30 - BEAT 1948 ! 2:45 - BEAUT 1957 3:00 - EAT # Zambia diff -r -c old/australasia new/australasia *** old/australasia Wed Aug 17 17:27:48 2011 --- new/australasia Sat Sep 3 08:50:46 2011 *************** *** 1,5 **** # <pre> ! # @(#)australasia 8.25 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)australasia 8.26 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 499,505 **** # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> ! # From Raymond Hughes (2010-10-07): # Please see # <a href="http://www.mcil.gov.ws"> # http://www.mcil.gov.ws --- 499,505 ---- # http://www.parliament.gov.ws/documents/acts/Daylight%20Saving%20Act%20%2020… # </a> ! # From Laupue Raymond Hughes (2010-10-07): # Please see # <a href="http://www.mcil.gov.ws"> # http://www.mcil.gov.ws *************** *** 509,515 **** # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks # backwards from 1:00am to 12:00am" ! # From Raymond Hughes (2011-03-07) # I believe this will be posted shortly on the website # <a href="http://www.mcil.gov.ws"> # www.mcil.gov.ws --- 509,515 ---- # to 01:00am and First Sunday April 2011 (03/04/11) - adjust clocks # backwards from 1:00am to 12:00am" ! # From Laupue Raymond Hughes (2011-03-07): # I believe this will be posted shortly on the website # <a href="http://www.mcil.gov.ws"> # www.mcil.gov.ws *************** *** 573,584 **** # Act affects the provisions of the Daylight Saving Act 2009, except that # it defines Samoa standard time.... Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 -11:00 1:00 WSDT 2011 Apr 2 4:00 ! -11:00 - WST 2011 Dec 30 13:00 - WST # Solomon Is --- 573,601 ---- # Act affects the provisions of the Daylight Saving Act 2009, except that # it defines Samoa standard time.... + # From Laupue Raymond Hughes (2011-09-02): + # <a href="http://www.mcil.gov.ws/mcil_publications.html"> + # http://www.mcil.gov.ws/mcil_publications.html + # </a> + # + # here is the official website publication for Samoa DST and dateline change + # + # DST + # Year End Time Start Time + # 2011 - - - - - - 24 September 3:00am to 4:00am + # 2012 01 April 4:00am to 3:00am - - - - - - + # + # Dateline Change skip Friday 30th Dec 2011 + # Thursday 29th December 2011 23:59:59 Hours + # Saturday 31st December 2011 00:00:00 Hours Zone Pacific/Apia 12:33:04 - LMT 1879 Jul 5 -11:26:56 - LMT 1911 -11:30 - SAMT 1950 # Samoa Time -11:00 - WST 2010 Sep 26 -11:00 1:00 WSDT 2011 Apr 2 4:00 ! -11:00 - WST 2011 Sep 24 3:00 ! -11:00 1:00 WSDT 2011 Dec 30 ! 13:00 1:00 WSDT 2012 Apr 1 4:00 13:00 - WST # Solomon Is

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