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Haiti on DST now
by Osko, Galatea March 15, 2012

March 15, 2012

Dear team, I'd like to subscribe to your DST changes notifications like the attached one. Thank you Galatea Osko Morgan Stanley | Enterprise Data Group Lechner Odon fasor 8 | Floor 06 Budapest, 1095 Phone: +36 1 881-3866 Galatea.Osko(a)morganstanley.com<mailto:Galatea.Osko@morganstanley.com> -------------------------------------------------------------------------- NOTICE: Morgan Stanley is not acting as a municipal advisor and the opinions or views contained herein are not intended to be, and do not constitute, advice within the meaning of Section 975 of the Dodd-Frank Wall Street Reform and Consumer Protection Act. If you have received this communication in error, please destroy all electronic and paper copies and notify the sender immediately. Mistransmission is not intended to waive confidentiality or privilege. Morgan Stanley reserves the right, to the extent permitted under applicable law, to monitor electronic communications. This message is subject to terms available at the following link: http://www.morganstanley.com/disclaimers. If you cannot access these links, please notify us by reply message and we will send the contents to you. By messaging with Morgan Stanley you consent to the foregoing.

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Turkey may go on DST permanently
by Steffen Thorsen March 14, 2012

March 14, 2012

According to Turkish news media, there is a draft law, which will cancel the switch back from DST in October, effectively putting Turkey on UTC+3 all year. No final decision has been made yet. Some sources (in Turkish): http://www.hurriyet.com.tr/gundem/20112729.asp http://www.sabah.com.tr/Yasam/2012/03/14/surekli-yaz-saati-1-yil-sonra-basl… Our coverage: http://www.timeanddate.com/news/time/turkey-dst-2012.html Best regards, Steffen Thorsen - timeanddate.com

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Re: [tz] TZ Coordinator candidate
by Doug Ewell March 12, 2012

March 12, 2012

Zefram <zefram at fysh dot org> wrote: > With ado's retirement now almost upon us, I'd like to volunteer for > the role of TZ Coordinator... I'm pretty sure I've never seen anything like this sort of self-campaigning, on any mailing list. Perhaps others who have been involved in more IETF lists have a different experience. Normally, a worthy candidate is nominated by others, and accepts the nomination with considerable humility. -- Doug Ewell | Thornton, Colorado, USA http://www.ewellic.org | @DougEwell

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Haiti on DST now
by Steffen Thorsen March 11, 2012

March 11, 2012

According to several news sources, Haiti will observe DST this year, apparently using the same start and end date as USA/Canada. So this means they have already changed their time. (Sources in French): http://www.alterpresse.org/spip.php?article12510 http://radiovision2000haiti.net/home/?p=13253 Our coverage: http://www.timeanddate.com/news/time/haiti-dst-2012.html Best regards, Steffen Thorsen - timeanddate.com

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Morocco will start DST on March 25, 2012
by Alexander Krivenyshev March 10, 2012

March 10, 2012

According to Infomédiaire web site from Morocco (infomediaire.ma), on March 9, 2012, (in French) Heure légale : Le Maroc adopte officiellement l'heure d'été http://www.infomediaire.ma/news/maroc/heure-l%C3%A9gale-le-maroc-adopte- officiellement-lheure-d%C3%A9t%C3%A9 Governing Council adopted draft decree, that Morocco DST starts on the last Sunday of March (March 25, 2012) and ends on last Sunday of September (September 30, 2012) except the month of Ramadan. or (brief) http://www.worldtimezone.com/dst_news/dst_news_morocco06.html Alexander Krivenyshev- WorldTimeZone.com http://www.worldtimezone.com

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Cambios de Hora de Chile
by Glenn Eychaner March 6, 2012

March 6, 2012

From http://www.horaoficial.cl/cambio.html: > Inicio del horario de Invierno 2012: > De acuerdo al Decreto Supremo N° 225, del 27 de febrero de 2012 del Ministerio del Interior : > a.- En el continente y Antártica Chilena. > A las 24:00 horas del día Sábado 28 de Abril de 2012, se atrasa una hora pasando a ser las 23:00 del mismo día. > (Quedando como GMT/UTC - 04). > b.- En Isla de Pascua e Isla Salas y Gómez. > A las 22:00 horas del día Sábado 28 de Abril de 2012, se atrasa una hora pasando a ser las 21:00 del mismo día. > (Quedando como GMT/UTC - 06). > El horario de Invierno se mantendrá hasta el sábado primero de Septiembre de 2012. Start of Winter Time 2012: In accordance with Supreme Decree 225, 27 Feb 2012, from the Interior Ministry: a.- On the continent and in the Chilean Antarctic: At 24:00 on Saturday 28 April 2012, the hour will go back to 23:00 of the same day, moving to UTC-04. b.- On Easter Island and Isla Salas y Gómez: At 22:00 on Saturday 28 April 2012, the hour will go back to 21:00 of the same day, moving to UTC-06. Winter Time will remain until the first Saturday of September. -G. -- Glenn Eychaner (geychaner(a)lco.cl) Telescope Systems Programmer, Las Campanas Observatory

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Australian Time Zone Abbreviations Discussion Review
by Shaun Bouckaert March 5, 2012

March 5, 2012

I started a discussion on this mailing list in November 2011 in regards to the incorrect time zone abbreviations used for Australian time zones. Initially there were several responses, the majority of which were positive to change, and yet the conversation seems to have died off. Recently published on this list was the IETF RFC 6557 "Procedures for Maintaining the Time Zone Database". The relevant section of that document to this discussion, Section 3 "Making Updates to the TZ Database" specifies at the bottom "To be clear, the TZ Coordinator SHALL NOT set time zone policy for a region but use judgement and whatever available sources exist to assess what the average person on street would think the time actually is, or in case of historical corrections, was." Also, point 3.3 states "Changes to existing entries SHALL reflect the consensus on the ground in the region covered by that entry." There were several people involved in the discussion that took place: Myself (Shaun Bouckaert <shaun.bouckaert(a)gmail.com>) Edwin Groothuis <edwin(a)mavetju.org> Eric Ulevik <eulevik(a)gmail.com> Elliot Lear <lear(a)cisco.com> Greg Black <gjb(a)yaxom.com> I reside in Australia, however I am not aware of the nationality or residency of any of the other contributors. I will summarise my points then attempt to do so with the points made by others. It is not my intention to mislead and if my summaries of their contributions are inaccurate then I hope they will correct me. Their contributions to the original discussion are available to view. I originally started the discussion after finding the Australian Federal Government had a web page of information regarding time zones in Australia. This can be accessed at http://australia.gov.au/about-australia/our-country/time This lists the timezones as Australian Eastern Standard Time: UTC +10 hours abbreviated as AEST Australian Central Standard Time: UTC +9 ½ hours abbreviated as ACST Australian Western Standard Time: UTC +8 hours abbreviated as AWST Where daylight savings is concerned, NSW, ACT, Victoria and Tasmania move from AEST to Australian Eastern Daylight Time UTC +11 hours abbreviated as AEDT SA and Broken Hill in NSW move from ACST to Australian Central Daylight Time UTC +10 ½ hours abbreviated as ACDT After this initial posting Edwin replied with his support. Eric then replied stating that Time Zones are legislated at the state level, not the federal level, seeming to imply that only state law should matter. Considering the RFC specifically states that the time zone policy should be based on available sources to assess what the average person on the street would think, and the fact that state legislation doesn't specify an abbreviation, there's no reason that this federal government information, which accurately reflects what everyone I have discussed this matter with understands to be true, should be discounted. This was reenforced by Edwin who pointed out two ways forward, stay where we are based on the absence of any specification of abbreviations in state legislation and continue bickering on this issue or move forward with the clearly defined federal information that fixes ambiguity that exists on an international level with the existing abbreviations and hopefully stop the bickering. Elliot then put forward two points, the first in line with the now existing guidelines in regards to what people on the street think, and the second point being to taking caution to possible side effects that could be caused by changing this. He points out that we could be going from ambiguous labels to something that is also ambiguous, but is there a way of finding out if the AEST, ACST, etc. are ambiguous in any way? Considering the significance of EST and CST to North America, it certainly seems more significant to reduce the ambiguity there. Edwin then found several Australian organisations and reviewed what they use. Broadcasters: The ABC (National Broadcaster): AEST SBS: AEST Channel 10: Mostly AEST, some instances of EST News Organisations: Sydney Morning Herald: EST The Australian: AEST The Daily Telegraph: Both EST and AEST Government Organisations: The Australian Bureau of Meteorology: Uses both, but specifies using AEST in their submission guidelines. Appended to this list I can add the Queensland Department of Transport and Main Roads, which I found is using AEST in their website Terms of Service. I also pointed out at the time that many instances of the use of EST could easily be due to the current state of the TZ database and would likely be corrected to AEST (or other where appropriate) with the update to the TZ database. It was also pointed out that Australians would on large understand the use of the A prefixed abbreviations due to their widespread use, especially by major broadcasters and news media. Greg Black added that he received three emails from different Australian organisations that used ADST for a timezone that he would personally label AEDT. I do not see this being an argument against the change, but indeed an argument for. There is existing confusion, some of it due to the incorrect labels in the TZ database. The fact that the federal government has presented a source for this change means that there's significant grounds for using it as a correct version or standard. Of the 5 people mailing the list during this discussion, the most significant contributions were made by myself and Edwin, both of us in support of the change to the A prefix, which also seemed to be supported by Greg Black who said he would personally label the timezone that the ADST label had referred to as AEDT. I could find no arguments put forward that demonstrated any advantage of the current system over the proposed alternative besides maintaining the status quo. I respect the caution put towards unintended side effects, but where these are due to corrections on what is arguably wrong information, isn't it better to fix it sooner rather than later? Shaun Bouckaert

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apparent-solar-time zone possible cleanup
by Zefram March 4, 2012

March 4, 2012

The apparent-solar-time zones seem to be misusing the "zzz" indicator, and they have poor boundary behaviour. The attached patch makes these changes that seem like a good idea to me: * abbreviation "LAT", for "Local Apparent Time", during the period where the zone provides LAT behaviour * additional apparent-time offset entry for Dec 31 of previous year, so that the ruleset provides LAT correctly for the first half of Jan 1 * range of validity of the LAT data defined strictly as starting and ending at Jan 1 00:00 UT * zone marked as disused outside the range of validity of the LAT data Also, thoughts on apparent solar time more generally: the existing solar?? files inconveniently can't be merged because the result would have more than 256 distinct offsets. However, if the resolution of the offsets were dropped from 5 s to 10 s, then there would be only 186 distinct offsets within the range of the equation of time, so we could have an apparent-time ruleset covering as many years as we're interested in. That could allow incorporating those rules into the regular Asia/Riyadh zone, rather than requiring these hacky separate zones. The apparent-time ruleset could also be formulaically generated at build time, rather than explicitly included in the source tarball. -zefram

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IANA website error: 2012b -> 2012a
by Andrew Paprocki March 3, 2012

March 3, 2012

The IANA website currently says: "Time Zone Data v. 2012b (Released 2 March 2012) tzdata2012b.tar.gz (202kb)" Yet the href points to: http://www.iana.org/time-zones/repository/releases/tzdata2012a.tar.gz -Andrew

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tabs in zone.tab
by Zefram March 2, 2012

March 2, 2012

My automatic repackager for CPAN has just barfed on the zone.tab in tzdata2012a. I should have checked the diff more carefully, I guess. The fault it finds is that the new America/Creston line has *two* tab characters between "America/Creston" and the region description. The comments at the top of the file include "Columns are separated by a single tab.". Previously the file adhered to the single tab rule, and I made my parser correspondingly strict. Obviously I'll manually intervene to get 2012a repackaged, but I think the file should be fixed for 2012b. -zefram

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