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Israel extends Daylight Savings Time
by Alexander Krivenyshev July 4, 2011

July 4, 2011

According to the Israel Prime Minister's Office (pmo.gov.il), Cabinet Approves draft legislation to extend Daylight Savings Time to an average of 193 days, as opposed to 182 today. Cabinet Approves Extension of Daylight Savings Time http://www.pmo.gov.il/PMOEng/Communication/Spokesman/2011/07/spokeclock0307… m or http://www.worldtimezone.com/dst_news/dst_news_israel03.html Alexander Krivenyshev http://www.worldtimezone.com

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[OT] Fwd: Why the name in America/Guayaquil?
by José Miguel Parrella Romero July 1, 2011

July 1, 2011

I'm forwarding this query to the list, and will greatly appreciate any comments. Thanks!

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Cairo TZ Environment Variable
by 雍義 July 1, 2011

July 1, 2011

Hello, I've just compiled tzdata2011h.tar.gz and found Cairo's TZ environment variable is empty. So I checked http://en.wikipedia.org/wiki/Egypt and use "EET-2". But I've never been to Cairo so I'm not absolute sure whether people there use that. Just FYI. Regards, Richard

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IERS Message No. 191: Colloquium on redefinition of UTC - Announcement
by central_bureau＠iers.org June 28, 2011

June 28, 2011

************************************************************************ IERS Message No. 191 June 28, 2011 ************************************************************************ Colloquium on redefinition of UTC - Announcement Decoupling Civil Timekeeping from Earth Rotation A Colloquium Exploring Implications of Redefining UTC in Astrodynamics, Astronomy, Geodesy, Navigation, Remote Sensing and Related Fields October 5-6, 2011 Headquarters of Analytical Graphics, Inc. 220 Valley Creek Blvd, Exton PA, 19341-2380 (near Philadelphia) Registration is now open at http://futureofutc.org Universal Time - the conventional measure of Earth rotation and astronomical time-of-day - is the traditional basis for civil timekeeping. Clocks worldwide are synchronized via Coordinated Universal Time (UTC), an atomic time scale recommended by the Radiocommunications Sector of the International Telecommunications Union (ITU-R). A proposal to fundamentally redefine UTC will come to a conclusive vote in January 2012 at the Radiocommunications Assembly of the ITU-R in Geneva. It would halt the intercalary adjustments known as leap seconds that maintain UTC as a form of Universal Time, and eliminate the requirement that time services transmit the varying residuals (DUT1) between Coordinated Universal Time and Universal Time of day. If the proposal is approved, UTC would not keep pace with Earth rotation and the value of DUT1 would become unconstrained. Adverse impacts from redefining UTC have not been extensively researched and documented. The implications extend from technical infrastructure to legal, historical, logistical, sociological and economic domains. Affected technologies may include (but are not limited to) applications in astronomy, astrodynamics and celestial mechanics, geodesy, ground-to-space satellite communications, navigation, remote sensing and space surveillance. This meeting will provide a venue for discussing and documenting the repercussions of changing UTC along with possible mitigation strategies. Co-chairs: Rob Seaman, National Optical Astronomy Observatory John Seago, Analytical Graphics, Inc. Steve Allen, University of California Observatories / Lick Observatory ************************************************************************ IERS Messages are edited and distributed by the IERS Central Bureau. To submit texts for distribution and to subscribe or unsubscribe, please write to <central_bureau(a)iers.org>. Archives: http://www.iers.org/Messages/ ************************************************************************

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Lack of zone Asia/Beijing and other major cites in China
by An Yang June 28, 2011

June 28, 2011

Hi Arthur, Beijing is the capital of People's Republic of China from 1949, and Beijing Time is used in whole PRC according to China law by now. It's a good news for the people who live in China, if they could see Beijing and other major cites in China. If it's possible, I'm glad to contribute. Bests, An Yang

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lack of zone Asia/Beijing
by An Yang June 27, 2011

June 27, 2011

Hi Arthur, Beijing is the capital of People's Republic of China from 1949, and Beijing Time is used in whole PRC according to China law. Do you mind to add Beijing time zone? Bests, An Yang

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Europe/Kaliningrad in 2011h
by yoshito_umaoka＠us.ibm.com June 27, 2011

June 27, 2011

In 2011h, the GMT offset of Europe/Kaliningrad was changed from 2:00 to 3:00 by the new Russian law. Zone Europe/Kaliningrad 1:22:00 - LMT 1893 Apr 1:00 C-Eur CE%sT 1945 2:00 Poland CE%sT 1946 3:00 Russia MSK/MSD 1991 Mar 31 2:00s 2:00 Russia EE%sT 2011 Mar 27 2:00s 3:00 - EET The format - "EET" is used above, which is now different from other "EET" (generated from "EE%sT") used by Eastern European zones. For example, "10:00 EET" in Europe/Bucharest after the daylight-standard transition in this fall is actually "11:00 EET" in Europe/Kaliningrad. I think this is confusing and should use more distinctive format. -Yoshito

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Mid-Atlantic time zone with DST support
by Isaac Lau June 21, 2011

June 21, 2011

Hi, I am wondering if Olsen database supports the above with the following specifics: If it does, please let me know which zone I should use. Note that in Microsoft XP and Windows 7, it contains a Mid-Atlantic time zone which observes DST. Thanks *Isaac # Atlantic Ocean or Mid Atlantic rules # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule MidAT 1980 max - Mar lastSun 2:00 1:00 - Rule MidAT 1980 max - Sep lastSun 2:00 0 - # Atlantic Ocean or Mid Atlantic # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Atlantic/Atlantic_Ocean -2:26:08 - LMT 1890 # -2:00 - GST 1980 # South Georgia Time -2:00 MidAT GST

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Re: proposed time zone package changes (Russia, Curacao)
by Arthur David Olson June 17, 2011

June 17, 2011

> In respect to the the dissolution of AN (Netherlands Antilles), you are > replacing its record with CW Curacao; but shouldn't a record also be > added for the other country formed by the dissolution, namely > Sint-Maarten (SX)? Below are revised changes to get in sync with the current ISO3166 data; these changes are relative to the stuff on the ftp site. --ado diff -r old/iso3166.tab new/iso3166.tab 2c2 < # @(#)iso3166.tab 8.6 --- > # @(#)iso3166.tab 8.9 23a24,27 > # From Arthur David Olson (2011-06-15): > # Resynchronized today with the ISO3116 site > # (deleting AN and adding BQ, CW, and SX). > # 33d36 < AN Netherlands Antilles 55a59 > BQ Bonaire Sint Eustatius & Saba 77a82 > CW Curacao 233a239 > SX Sint Maarten diff -r old/southamerica new/southamerica 2c2 < # @(#)southamerica 8.49 --- > # @(#)southamerica 8.50 1278a1279,1286 > # From Arthur David Olson (2011-06-15): > # At least for now, use links for places with new iso3166 codes. > # The name "Lower Prince's Quarter" is both longer than fourteen charaters > # and contains an apostrophe; use "Lower_Princes" below. > > Link America/Curacao America/Lower_Princes # Sint Maarten > Link America/Curacao America/Kralendijk # Bonaire, Sint Estatius and Saba > diff -r old/zone.tab new/zone.tab 2c2 < # @(#)zone.tab 8.43 --- > # @(#)zone.tab 8.45 35d34 < AN +1211-06900 America/Curacao 89a89 > BQ +120903-0681636 America/Kralendijk 157a158 > CW +1211-06900 America/Curacao 364a366 > SX +180305-0630250 America/Lower_Princes

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DST in America/Metlakatla?
by Bill Seymour June 17, 2011

June 17, 2011

I apologize if this is old news that somehow blew by me. I don't think the zone America/Metlakatla in northamerica is quite right yet. I think the rule in the last line of the zone should be "-", not "US". I'm guessing that that was just a typo. FWIW, I've confirmed independently that Metlakatla observes UTC-8 year-round. My day job is with the U.S. Postal Service, and I work on a system that schedules transportation, so time zones are important to me. Confused by the "US" in America/Metlakatla, I called the 99926 post office; and the woman I spoke to said, "Right now, we're the same time as the rest of Alaska. Fall/winter, we're the same as Seattle." --Bill Seymour "If this were my employer's opinion, I wouldn't be allowed to post it." -- Norman Diamond

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