March 2022 - tz - lists.iana.org

Updates on Iranian Time Zone (IRDT)
by Mohammad Ali Tofighi May 10, 2022

May 10, 2022

Hi. Recently the Iranian parliament has decided to remove daylight saving from the Iranian time zone, eliminating the one-hour shift in the summer time. Hence, it is always going to be UTC+3:30. *This is not their final decision yet* and there is a final confirmation to be made, but I just wanted to inform you about the update to prepare possible modifications. I'm a software engineer and if we have the update on *tzdata* package as soon as possible, the software companies can adjust themselves accordingly. Please read these official news: https://www.isna.ir/news/1400122419045/ https://www.yjc.news/00Xw0k Regards, Ali Tofighi

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Re: [tz] Wrong name of timezone
by Pierpaolo Bernardi April 11, 2022

April 11, 2022

Il giorno 25 ottobre 2021, alle ore 16:58, Igor Melnyk via tz <tz(a)iana.org> ha scritto: >But Ukraine has the Ukrainian language and Kiev is in russian language. The correct name of the capital city of Ukraine is Kyiv. Kiev is English language, as every other name in the db, not russian. It is only a coincidence that the English name is more similar to russian than to Ukrainian.

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TZDB talk tomorrow at LibrePlanet 2022
by Paul Eggert March 31, 2022

March 31, 2022

Tomorrow, March 19, at 21:15–22:00 UTC (17:15–18:00 US Eastern time) I plan to deliver a talk "TZDB and some challenges of long data" at the all-online LibrePlanet 2022 conference. LibrePlanet is a conference about software freedom, happening on March 19–20, 2022. The event is hosted by the Free Software Foundation, and brings together software developers, law and policy experts, activists, students, and computer users to learn skills, celebrate free software accomplishments, and face upcoming challenges. Newcomers are welcome, and LibrePlanet 2022 will feature programming for all ages and experience levels. You can register for the conference in advance at <https://my.fsf.org/civicrm/event/info?reset=1&id=99>.

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Some typo fixes
by Sascha Wildner March 31, 2022

March 31, 2022

Hi, please consider the attached patch which fixes three of typos in the tz files. Best regards Sascha Wildner

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indentation in localtime.c
by Roland Illig March 31, 2022

March 31, 2022

Hi, I had a look at tzcode/localtime.c today, and the indentation looks like a mess. It's a wild mixture between 2 spaces, 4 spaces, 1 tab, 2 tabs, and I couldn't see any pattern or reasonable rule set that would account for the whole file. Is this apparent mess intentional? If so, what is the history and rationale behind it? If not, who can fix this? Roland

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Regarding time zone changes in Chile
by Juan Correa March 31, 2022

March 31, 2022

Hello everyone: A few days ago, I've seen some mails regarding time zone changes, specially regarding Punta Arenas. I found https://www.horaoficial.cl/historia_hora.php ; a page (with a terrible slider) with more details regarding time zones in Chile What comes for bringing this page is for 2 points, brought by Alois Treindl a few weeks ago: - From January 10, 1910, the Official Time Zone for all of Chile was set to GMT -5. I've got to check through the exact wording, but it's important to keep track that legally, all Chile has an uniform common time zone (that, obviously, started to change from 1916). - On August 22, 1927, DST was established as "hora oficial de invierno" and "hora oficial de verano"; jumping from a relative time zone from Lo Espejo observatory (-4:42:46) to UTC -5 during winter (and GMT -4 during summer). As there's a decree establishing that, I will request it to share; but using the same principle, the time zone for all of Chile was standardized using those 2 time zones (until further notice) In other matters, I've repeatedly contacted the Ministry of Energy (as Tim could see ;) ) by Twitter, through their Information Office and now by telephone, regarding America/Punta_Arenas this saturday. What they just told me is they have to check the interpretation of the decree (…), as it says "permanently", but seems everyone skipped the date before that word. I've also checked Diario Oficial (our legislation gazette) from March 1; and there is no decree yet. I will try other ways to get as soon as possible that information. However, vox populi, everyone is assuming Punta Arenas (and Magallanes) will keep UTC -3; so I think it was a sensible assumption back in the day -- Juan Correa Poblete PS Labs (http://www.pslabs.cl)

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America/Dawson_Creek
by Michael Ewert March 28, 2022

March 28, 2022

Hello. TZ is a great database for all the different clocks in the world, and their changes. Thank-you for researching and maintaining such a great resource. America/Dawson_Creek has coordinates listed as +5946-12014, however I believe that the intended coordinates are +5546-12014. Thank-you for your work keeping the world ticking. Michael Ewert

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Time zone in the news
by Arthur David Olson March 27, 2022

March 27, 2022

'Autocorrect in @washingtonpost <https://twitter.com/washingtonpost/>: "Gare de l'Est" becomes "Gare de l'Eastern time." Article by @Claremch <https://twitter.com/Claremch/>, "How Russian emigres scratched out a living once they lost their world of riches." Also an editing lapse of course, and no, I couldn't find this article online.' https://twitter.com/Seth4MC/status/1508059818598219777 (Not-so-fun fact: in one round of C language standardization, it took months of repeated effort to get "time zone name" changed to "time zone name or abbreviation.") @dashdashado

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Maryland permanent DST hearing
by Arthur David Olson March 24, 2022

March 24, 2022

A Maryland State Senate committee hearing covering (among other things) a Maryland-specific permanent Daylight Saving Time bill is set to begin at 1:00 USEDT. The link... https://www.youtube.com/channel/UCYqghFoT_BDQ0N5xjvTacgg/videos ...will get you to the Youtube channel where the hearing should be viewable. @dashdashado

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Re: [tz] The State of Palestine has adopted the first part of the specification for its time zone
by heba.hamad＠mtit.gov.ps March 24, 2022

March 24, 2022

Dear Sir, kindly find the attachment below that includes the response of your comments about the first part of Palestines specification Time Zone BR,في الاثنين, يناير 24, 2022 05:15 EST, "Clive D.W. Feather" <clive(a)davros.org> كتب: Heba Hamad via tz said: > Dear Sir, > > Hope this email finds you well and wishing you a joyful new year . > We would like to inform you that The State of Palestine has adopted the > first part of the specification for its time zone. > Kindly refer to the attachment below, which includes the specification > and please provide me with any comments or notes you have regarding > this specification. > Ps: Please provide me with any comments you have. > Sincerely Yours, > > Eng.Heba Hamad Dear Mr Hamad, My apologies for the length of time this reply has taken, but here are some comments on your document. Page 6 item 2: the second paragraph looks more like a definition of local time than of UTC. Compare with item 6 on the next page. Page 7 item 7: while this is the commonest form of "daylight saving time" or "summer time", as it is usually known in Europe, it is not the only possibility: * Some countries have two switches forward and two back per year, for example to move back to standard time for Ramadan then forward for the rest of the summer. * At least historically, some places have had two forward shifts at different points in spring and then two backwards shifts at different point in the autumn. * Not all shifts are an hour: Lord Howe Island in Australia has a shift of 30 minutes forward in the summer. * At least one country defines "standard time" as being the time in the summer, with a shift back to "winter time" in autumn and then forward to standard time in spring. * There is at least one historical record where an area put the clocks forward in winter because of an unusual geography. You might at least want to delete the words "one hour from standard time". Page 8: note 1 to entry contradicts the definitions. Item 6 on page 7 implies that "standard time" is a fixed offset from UTC whereas this implies it isn't. Page 9 item 1: the range of dates under consideration affects time zones. The IANA database normally only looks at the situation from 1970 onwards. Picking other starting dates will affect which time zones exist because places differed in time before 1970 but not after it. This is why the IANA database has both Asia/Gaza and Asia/Hebron. Page 9 item 4: this is a description of the IANA TZ database. It is possible for other TZ databases to exist and they might not match that defintion. Also note that updates can be for changes made other than by political bodies (the IANA TZ database works on what actually happens on the ground, not what politicians say what happens). Page 10 item 5: "Government is expected to select these names alone" is, I'm afraid, false. Each database owner selects these names. The IANA database normally uses names of the form "continent/city" or "continent/region/city", but another database might use simple numbers or randomly allocated four-letter strings instead. Page 10 item 6: the description doesn't bear any relationship to the Palestinian Government. Page 11 first line: is the text beginning "This specification" meant to be the start of a new item? It doesn't seem to have anything to do with "Observance". Page 11 item 1: I'm not clear what the purpose of this item is. Page 11 item 2: the first paragraph describes the IANA TZ database rules and other TZ databases may differ. The last sentence of the second paragraph is not true, I'm afraid, since each TZ author can pick their own values and accept registrations or other information from anyone. I suspect you may have got your concepts confused. May I please suggest alternative wording? ==== BEGIN ==== The Structure: 1. Palestine Time Zone Palestine will use a single time zone. The State of Palestine is the Palestine Time Zone owner. It has the sole right to determine: - the UTC offset for the zone - the rules for changing this offset at different times of the year - the names and abbreviations used for the time in Palestine in official Palestinian documents. Note: before 2013 Palestine had two time zones using the meaning under "Fundamental Principles". Therefore some distributions may continue to use two time zones in order to represent pre-2013 data. 2. Names and abbreviations Palestine will use the terms and abbreviations "Palestine Standard Time (PSST)" for the time in Palestine during standard time and "Palestine Daylight Time (PSDT)" for the time in Palestine during Daylight Savings. ==== END ==== Legal clause: you of course have the right to determine the name used in official Palestinian documents and the official time used in Palestine. But you cannot determine the name of the time zone in any given database because that's decided by the database owner. Note, here, the difference between your official names (e.g. "PSST"), which you ahve the exclusive right to decide, and names used by others (e.g. "Asia/Gaza" or "A261"), which you don't. Yours sincerely, Clive D.W. Feather -- Clive D.W. Feather | If you lie to the compiler, Email: clive(a)davros.org | it will get its revenge. Web: http://www.davros.org | - Henry Spencer Mobile: +44 7973 377646

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