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Cuba to start DST one week later than usual
by Steffen Thorsen March 9, 2011

March 9, 2011

Granma announced that Cuba is going to start DST on 2011-03-20 00:00:00 this year. Nothing about the end date known so far (if that has changed at all). Source: http://granma.co.cu/2011/03/08/nacional/artic01.html Our info: http://www.timeanddate.com/news/time/cuba-starts-dst-2011.html Best regards, Steffen Thorsen - timeanddate.com

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Samoa Daylight Savings End has just been amended again
by Raymond Hughes March 8, 2011

March 8, 2011

I believe this will be posted shortly on the website www.mcil.gov.ws. PUBLIC NOTICE ON DAYLIGHT SAVING TIME Pursuant to the Daylight Saving Act 2009 and Cabinet’s decision, businesses and the general public are hereby advised that daylight saving time is on the first Saturday of April 2011 (02/04/11). The public is therefore advised that when the standard time strikes the hour of four o’clock (4.00am or 0400 Hours) on the 2nd April 2011, then all instruments used to measure standard time are to be adjusted/changed to three o’clock (3:00am or 0300Hrs). Margaret Fruean ACTING CHIEF EXECUTIVE OFFICER MINISTRY OF COMMERCE, INDUSTRY AND LABOUR 28th February 2011

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2011c
by Olson, Arthur David (NIH/NCI) [E] March 7, 2011

March 7, 2011

The files... ftp://elsie.nci.nih.gov/pub/tzcode2011c.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2011c.tar.gz ...are now available; these reflect the changes circulated last week on the time zone mailing list. These do affect current time stamps in Chile and Annette Island, Canada. --ado

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Belarus may cancel the transition to the Winter time in the autumn of 2011
by Alexander Krivenyshev March 7, 2011

March 7, 2011

Belarus may cancel the transition to the Winter time in the autumn of 2011- same as Russia plans. Belarus business portal link (in Russian): http://bel.biz/news/38106.html or http://www.worldtimezone.com/dst_news/dst_news_belarus01.html "State Metrology Institute of Belarus has decided to recommend to the Government to cancel the transition to the Winter time in the autumn of 2011." Alexander Krivenyshev, http://www.worldtimezone.com

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Dry Tortugas is Central or Eastern Time?
by Aaron Brown March 4, 2011

March 4, 2011

I just went to Dry Tortugas National Park last weekend, about 70 miles west of Key West. Before going, I had noticed that wikipedia (http://en.wikipedia.org/wiki/Eastern_Time_Zone#North_America) mentioned that there was some debate about if the Dry Tortugas were in the Central or the Eastern time zone. While there, I went into the bookstore and asked if there was any truth to them being on Central Time. They looked at me as if this was the first they ever heard about this. In fact, it doesn't make any sense that they would be on anything other than Eastern Time as 99% of those visiting there are arriving via Key West, which is on Eastern Time. So, I went and modified the wikipedia page to remove the apparent misinformation about Dry Tortugas possibly being on Central Time. I then did a google search and came up with a couple of pages (http://keywestseaplanecharters.com/Tips-Secrets/default.asp, http://www.mendosa.com/fitnessblog/?p=6947) claiming that they are officially on Central Time, but that Eastern Time is used there. Is there any truth to Dry Tortugas being officially on Central Time? Did they used to be on Central Time in the past? Aaron

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by Petr Baudis March 4, 2011

March 4, 2011

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Chile - Daylight Saving Time extension in 2011
by Pablo Jiménez March 3, 2011

March 3, 2011

Hi, Due to a drought and as one of several actions to avoid a future electricity shortfall this year, Chile extends Daylight Saving Time till early April. According to media reports, this one-time change will take place on Saturday, April 2nd at 24:00 for America/Santiago and on Saturday, April 2nd at 22:00 for Pacific/Easter. At the moment, there's no official decree available, but you can check the information at: http://www.ansa.it/ansalatina/notizie/notiziari/chile/20110302165435226594.… http://af.reuters.com/article/metalsNews/idAFN0223009220110302 http://online.wsj.com/article/BT-CO-20110302-708197.html Best regards, -- Pablo Jimenez

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proposed time zone package changes (Chile, Alaska, et al.)
by Arthur David Olson March 2, 2011

March 2, 2011

Below find proposed changes to the time zone package; the executive summary: * leapseconds Update notice from IERS (change to commentary only) * northamerica Replace Juneau with Juneau, Sitka, and Metlakatla. * southamerica Delay end of DST in 2011 until first Sunday in April. * tz-art.htm Add material on episode of "Outsourced." * zone.tab Replace Juneau with Juneau, Sitka, and Metlakatla. These change do affect current time stamps in Metlakatla and immiment time stamps in Chile. I'm waiting on making changes to Russia until we learn whether or not their new, year-round time will be called standard time; we'll see what happens at the end of this month. Since the Chile change is being made on short notice, I'll update the ftp versions on 2011-03-07 if no problems are found. --ado diff -r -c old/leapseconds new/leapseconds *** old/leapseconds Thu Dec 16 12:24:20 2010 --- new/leapseconds Mon Feb 14 09:30:33 2011 *************** *** 1,5 **** # <pre> ! # @(#)leapseconds 8.10 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)leapseconds 8.11 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 56,68 **** # SERVICE DE LA ROTATION TERRESTRE # OBSERVATOIRE DE PARIS # 61, Av. de l'Observatoire 75014 PARIS (France) ! # Tel. : 33 (0) 1 40 51 22 26 # FAX : 33 (0) 1 40 51 22 91 # Internet : services.iers(a)obspm.fr # ! # Paris, 14 July 2010 # ! # Bulletin C 40 # # To authorities responsible # for the measurement and --- 56,68 ---- # SERVICE DE LA ROTATION TERRESTRE # OBSERVATOIRE DE PARIS # 61, Av. de l'Observatoire 75014 PARIS (France) ! # Tel. : 33 (0) 1 40 51 22 29 # FAX : 33 (0) 1 40 51 22 91 # Internet : services.iers(a)obspm.fr # ! # Paris, 2 February 2011 # ! # Bulletin C 41 # # To authorities responsible # for the measurement and *************** *** 70,78 **** # # INFORMATION ON UTC - TAI # ! # NO positive leap second will be introduced at the end of December 2010. # The difference between Coordinated Universal Time UTC and the ! # International Atomic Time TAI is : # # from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s # --- 70,78 ---- # # INFORMATION ON UTC - TAI # ! # NO positive leap second will be introduced at the end of June 2011. # The difference between Coordinated Universal Time UTC and the ! # International Atomic Time TAI is : # # from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s # *************** *** 82,87 **** # will be no time step at the next possible date. # # Daniel GAMBIS ! # Director ! # Earth Orientation Center of IERS # Observatoire de Paris, France --- 82,87 ---- # will be no time step at the next possible date. # # Daniel GAMBIS ! # Head ! # Earth Orientation Center of the IERS # Observatoire de Paris, France diff -r -c old/northamerica new/northamerica *** old/northamerica Wed Jan 26 17:13:48 2011 --- new/northamerica Wed Feb 9 14:00:33 2011 *************** *** 1,5 **** # <pre> ! # @(#)northamerica 8.40 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)northamerica 8.41 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 426,431 **** --- 426,473 ---- # were nearby inhabitants in some cases and for our purposes perhaps # it's best to simply use the official transition. # + + # From Steve Ferguson (2011-01-31): + # The author lives in Alaska and many of the references listed are only + # available to Alaskan residents. + # + # <a href="http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&…"> + # http://www.alaskahistoricalsociety.org/index.cfm?section=discover%20alaska&… + # </a> + + # From Arthur David Olson (2011-02-01): + # Here's database-relevant material from the 2001 "Alaska History" article: + # + # On September 20 [1979]...DOT...officials decreed that on April 27, + # 1980, Juneau and other nearby communities would move to Yukon Time. + # Sitka, Petersburg, Wrangell, and Ketchikan, however, would remain on + # Pacific Time. + # + # ...on September 22, 1980, DOT Secretary Neil E. Goldschmidt rescinded the + # Department's September 1979 decision. Juneau and other communities in + # northern Southeast reverted to Pacific Time on October 26. + # + # On October 28 [1983]...the Metlakatla Indian Community Council voted + # unanimously to keep the reservation on Pacific Time. + # + # According to DOT official Joanne Petrie, Indian reservations are not + # bound to follow time zones imposed by neighboring jurisdictions. + # + # (The last is consistent with how the database now handles the Navajo + # Nation.) + + # From Arthur David Olson (2011-02-09): + # I just spoke by phone with a staff member at the Metlakatla Indian + # Community office (using contact information available at + # <a href="http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla"> + # http://www.commerce.state.ak.us/dca/commdb/CIS.cfm?Comm_Boro_name=Metlakatla + # </a>). + # It's shortly after 1:00 here on the east coast of the United States; + # the staffer said it was shortly after 10:00 there. When I asked whether + # that meant they were on Pacific time, they said no--they were on their + # own time. I asked about daylight saving; they said it wasn't used. I + # did not inquire about practices in the past. + # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Juneau 15:02:19 - LMT 1867 Oct 18 -8:57:41 - LMT 1900 Aug 20 12:00 *************** *** 432,440 **** --- 474,499 ---- -8:00 - PST 1942 -8:00 US P%sT 1946 -8:00 - PST 1969 + -8:00 US P%sT 1980 Apr 27 2:00 + -9:00 US Y%sT 1980 Oct 26 2:00 -8:00 US P%sT 1983 Oct 30 2:00 -9:00 US Y%sT 1983 Nov 30 -9:00 US AK%sT + Zone America/Sitka -14:58:47 - LMT 1867 Oct 18 + -9:01:13 - LMT 1900 Aug 20 12:00 + -8:00 - PST 1942 + -8:00 US P%sT 1946 + -8:00 - PST 1969 + -8:00 US P%sT 1983 Oct 30 2:00 + -9:00 US Y%sT 1983 Nov 30 + -9:00 US AK%sT + Zone America/Metlakatla 15:13:42 - LMT 1867 Oct 18 + -8:46:18 - LMT 1900 Aug 20 12:00 + -8:00 - PST 1942 + -8:00 US P%sT 1946 + -8:00 - PST 1969 + -8:00 US P%sT 1983 Oct 30 2:00 + -8:00 US MeST Zone America/Yakutat 14:41:05 - LMT 1867 Oct 18 -9:18:55 - LMT 1900 Aug 20 12:00 -9:00 - YST 1942 diff -r -c old/southamerica new/southamerica *** old/southamerica Thu Dec 16 12:24:20 2010 --- new/southamerica Wed Mar 2 12:47:20 2011 *************** *** 1,5 **** # <pre> ! # @(#)southamerica 8.44 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)southamerica 8.45 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 1154,1159 **** --- 1154,1176 ---- # From Arthur Daivd Olson (2010-03-06): # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. + # From Glenn Eychaner (2011-03-02): [geychaner(a)mac.com] + # It appears that the Chilean government has decided to postpone the + # change from summer time to winter time again, by three weeks to April + # 2nd: + # <a href="http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia…"> + # http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia… + # </a> + # + # This is not yet reflected in the offical "cambio de hora" site, but + # probably will be soon: + # <a href="http://www.horaoficial.cl/cambio.htm"> + # http://www.horaoficial.cl/cambio.htm + # </a> + + # From Arthur David Olson (2011-03-02): + # The emol.com article mentions a water shortage as the cause of the + # postponement, which may mean that it's not a permanent change. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Chile 1927 1932 - Sep 1 0:00 1:00 S Rule Chile 1928 1932 - Apr 1 0:00 0 - *************** *** 1189,1196 **** # which is used below in specifying the transition. Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - ! Rule Chile 2010 only - Apr 4 3:00u 0 - ! Rule Chile 2011 max - Mar Sun>=9 3:00u 0 - # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] --- 1206,1213 ---- # which is used below in specifying the transition. Rule Chile 2008 only - Mar 30 3:00u 0 - Rule Chile 2009 only - Mar Sun>=9 3:00u 0 - ! Rule Chile 2010 2011 - Apr Sun>=1 3:00u 0 - ! Rule Chile 2012 max - Mar Sun>=9 3:00u 0 - # IATA SSIM anomalies: (1992-02) says 1992-03-14; # (1996-09) says 1998-03-08. Ignore these. # Zone NAME GMTOFF RULES FORMAT [UNTIL] diff -r -c old/tz-art.htm new/tz-art.htm *** old/tz-art.htm Wed Jan 19 13:47:16 2011 --- new/tz-art.htm Mon Feb 14 16:22:50 2011 *************** *** 9,15 **** <body> <h1>Time and the Arts</h1> <address> ! @(#)tz-art.htm 8.19 </address> <p> This file is in the public domain, so clarified as of --- 9,15 ---- <body> <h1>Time and the Arts</h1> <address> ! @(#)tz-art.htm 8.20 </address> <p> This file is in the public domain, so clarified as of *************** *** 417,422 **** --- 417,427 ---- http://us.imdb.com/title/tt0137494/ </a>. (Mark Brader, 2009-10-02) </li> + <li> + In "The Todd Couple" episode of "Outsourced" (first aired 2011-02-10), + Manmeet sets up teledates for 6:00 and 9:00; + since one is with a New Yorker and the other with a San Franciscan, + hilarity ensues. </li> </ul> <hr> diff -r -c old/zone.tab new/zone.tab *** old/zone.tab Wed Jan 26 18:47:09 2011 --- new/zone.tab Wed Feb 9 14:00:33 2011 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.40 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 1,5 ---- # <pre> ! # @(#)zone.tab 8.41 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # *************** *** 412,420 **** --- 412,422 ---- US +340308-1181434 America/Los_Angeles Pacific Time US +611305-1495401 America/Anchorage Alaska Time US +581807-1342511 America/Juneau Alaska Time - Alaska panhandle + US +571035-1351807 America/Sitka Alaska Time - southeast Alaska panhandle US +593249-1394338 America/Yakutat Alaska Time - Alaska panhandle neck US +643004-1652423 America/Nome Alaska Time - west Alaska US +515248-1763929 America/Adak Aleutian Islands + US +550737-1313435 America/Metlakatla Metlakatla Time - Annette Island US +211825-1575130 Pacific/Honolulu Hawaii UY -3453-05611 America/Montevideo UZ +3940+06648 Asia/Samarkand west Uzbekistan

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Chile extends daylight time this year
by Andy Heninger March 2, 2011

March 2, 2011

Chile appears to have gone ahead and made a last minute change in their transition to standard time this year. From http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia… Gobierno posterga en tres semanas "horario de invierno" para enfrentar déficit hídrico El "horario de invierno" comenzará a regir este año a partir de la medianoche del 2 de abril.

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Chilean government postpones time change
by Glenn Eychaner March 2, 2011

March 2, 2011

It appears that the Chilean government has decided to postpone the change from summer time to winter time again, by three weeks to April 2nd: http://www.emol.com/noticias/nacional/detalle/detallenoticias.asp?idnoticia… This is not yet reflected in the offical "cambio de hora" site, but probably will be soon: http://www.horaoficial.cl/cambio.htm -G. -- Glenn Eychaner (geychaner(a)lco.cl) Telescope Systems Programmer, Las Campanas Observatory

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