- tz - lists.iana.org

Introduce Etc/UTC+x timezones?
by Benjamin Drung May 4, 2023

May 4, 2023

Hi, If people are aware of timezones, they often know UTC and their offsets (e.g. Europe/Berlin is UTC+2 summer). But they are probably not aware that the Etc/GMT offsets are inverted (e.g. you have to select Etc/GMT-2 for UTC+2). I was not aware of that and other people as well as the bugs in Ubuntu and Debian indicate (see https://launchpad.net/bugs/1325949 and https://bugs.debian.org/540305) What do you think about the idea of introducing Etc/UTC+x timezones that have the "correct" offset so that people can select fixed offsets more easily? So Etc/GMT-2 would be renamed to Etc/UTC+2 and Etc/GMT-2 would become a symlink to it (same for all other Etc/GMT+x and Etc/GMT-x timezones). -- Benjamin Drung Debian & Ubuntu Developer

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DST changes for Egypt
by Eugen Cravciuc May 3, 2023

May 3, 2023

Hi. May you please update the values for the DST Egypt? Thank you https://www.timeanddate.com/time/change/egypt

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offtime_r
by Dag-Erling Smørgrav April 26, 2023

April 26, 2023

The tzcode distribution includes a (non-standard and undocumented) offtime() function but no offtime_r() function, which seems like an oversight. The attached patch (relative to 2023c) adds it. Regards, Dag-Erling

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Change Chile/Santiago DST
by Antonio Afranio Barbosa Martins April 26, 2023

April 26, 2023

Hi there, There is a issue with Daylight Saving Time (DST) for Chile/Santiago (South America). Based on some sites like https://www.timeanddate.com/time/zone/chile/santiago and https://www.bcn.cl/leychile/navegar?i=1179983&f=2022-08-13 (oficial Chile resolution) Correct time: Year Daily Time Change 2022 Sun, 3 Apr, 00:00 -1 hour (DST end) Sun, 11 Sep, 00:00 +1 hour (DST start) 2023 Sun, 2 Apr, 00:00 -1 hour (DST end) Sun, 3 Sep, 00:00 +1 hour (DST start) 2024 Sun, 7 Apr, 00:00 -1 hour (DST end) Sun, 8 Sep, 00:00 +1 hour (DST start) 2025 Sun, 6 Apr, 00:00 -1 hour (DST end) Sun, 7 Sep, 00:00 +1 hour (DST start) 2026 Sun, 5 Apr, 00:00 -1 hour (DST end) Sun, 6 Sep, 00:00 +1 hour (DST start) Descarga de Responsabilidad: Este mensaje contiene información confidencial y esta dirigido solamente al remitente especificado. Si usted no es el destinatario no debe tener acceso, distribuir ni copiar este e-mail. Notifique por favor al remitente inmediatamente si usted ha recibido este mensaje por error y eliminelo de su sistema. La transmisión del e-mail no se puede garantizar que sea segura, sin errores o como que la información podría ser interceptada, alterada, perdida, destruida, llegar atrasado, incompleto o contener virus, por lo tanto el remitente no acepta la responsabilidad por ningunos de los errores u omisiones en el contenido de este mensaje, que se presentan como resultado de la transmisión del e-mail. Si la verificación se requiere, por favor solicite una versión impresa. Disclaimer: This message contains confidential information and is intended only for recipient specified. If you are not recipient you should not disseminate, distribute or copy this e-mail. Please notify to sender immediately if you have received this message by mistake and delete this from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The receptor therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission. If verification is required, please request a hard-copy version.

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Comments
by Arthur David Olson April 24, 2023

April 24, 2023

Fun fact: the time zone database is 80% comments by volume. @dashdashado

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Mexico timezones
by Var Nazari April 10, 2023

April 10, 2023

Hello, Mexico has recently abolished daylight savings except for where they border with the United States. I believe the timezone database is now inaccurate because it should not be showing CDT for most of the country any longer and should be CST instead. It seems like this was addressed in release notes for the tzdb version 2022f and 2022g but I'm not sure that the correct changes were applied. Could you verify/explain why the timezones in Mexico are still recorded as CDT? Is this a mistake? Thank you

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Changing 24:00 to 0:00 where possible
by Jacob Pratt April 5, 2023

April 5, 2023

While writing a parser for tzdb files, I noticed that some rules are for a given date at 24:00, rather than the following day at 0:00. While in some cases this is unavoidable (Egypt), in others there is no reason this is necessary (Belize). I think it would be reasonable to change 24:00 to 0:00 where possible, incrementing the day, day of week, and month as appropriate. This would reduce the need for special casing values to those that have a technical reason. Jacob Pratt

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Error in the "America/Santiago" timezone for one week of September 2022
by Javier Ayala March 31, 2023

March 31, 2023

Hello, There is an error in the 'America/Santiago' timezone. The week between September 4th, 2022 and September 10th, 2022 should have the offset of -4.0, but it currently shows -3.0. This error occurred due to the 2022 Chilean national plebiscite <https://en.wikipedia.org/wiki/2022_Chilean_national_plebiscite>, which caused the government to postpone the scheduled time change by one week, from September 3rd to September 10th. Sources: - Decree in Chile's Official Gazette: https://www.diariooficial.interior.gob.cl/publicaciones/2022/08/13/43327/01… - News published in Chile's government website: https://www.gob.cl/noticias/ministerio-del-interior-informa-respecto-al-cam… Greetings, Javier Ayala

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(no subject)
by Jack Bakaev March 29, 2023

March 29, 2023

Hello, Lebanon decided to postpone the DST till end of April instead of march 25-26 TZ complied then the cabinet of Ministers in Lebanon decided yesterday March 27 to revert to DST during the night of March 29-30. please do not revert Lebanon DST back to March 25-26! this will cause problems for those who who already complied with the postponement please revert to DST during the night of March 29-30. Jack Bakaev Internet Society - Lebanon Chapter Chapter Secretary

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Re: [tz] [PROPOSED 2/2] Fix comments on Lebanon this week
by Paige Tummons March 29, 2023

March 29, 2023

Hi Paul, I'm reaching out regarding your request for comments<https://mm.icann.org/pipermail/tz/2023-March/032833.html> on the proposal to revert back to 2023a instead of updating 2023c to reflect the Lebanon DST change of 30 March. I've been working closely with medical centers in Lebanon to ensure that their healthcare systems are in continuous legal compliance with the government directives. We have been in close communication with Lebanese government authorities who legally consider the spring forward event to be on 30 March (with the jump being from 11:59:59 PM on 29 March to 01:00:00 AM on 30 March). We are strongly urging you to reflect this update in the 2023c file, to avoid the published tzdata file being in direct conflict with the government directive of the spring DST event in Lebanon happening on 30 March. The Prime Minister met with the cabinet yesterday, and together they agreed that Lebanon DST happens on the 30th of March. No government authorities consider the 26 March 2023 event to be the "true" DST time for Lebanon. Thanks, Paige Tummons

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