If you wanna understand me as a person, you need to understand that the tzdb is the most important piece of software ever made. Because of this, its changelogs are required reading: https://lists.iana.org/hyperkitty/list/[email protected]/thread/VX2Z3CBO6KHTYZNBBKFFWM7ZCI6TVCXP/

Like, a software bug causing a different end to DST in British Columbia that what was legislated? That's hilarious and amazing.

So everybody update their tzdb, new timezones just dropped babeee!

#timezones #tzdb #theWorkshop

@amberage Are you using a location-based #timezone? The #tzdb tinezones revert back to solar time eventually, and those are at irregular seconds offsets.

There are no meaningful clock times in our 24 hour clocks that far back, but the UTC scale is extended backwards without the offset changes.

[Перевод] Австралия, Лорд-Хау — самый странный часовой пояс

Часовые пояса представляют собой довольно запутанную концепцию, но не безнадёжно. И далее я опишу точную принципиальную модель, которая вам понадобится для их понимания. Обсуждение часовых поясов, как правило, заключается в перечислении всех заблуждений, которые о них имеют программисты. Но подобные списки не несут особой пользы, так как сложно докопаться до истины, оперируя лишь общим представлением о некотором заблуждении. Так что я предлагаю другой подход. В этой статье я покажу вам несколько странных часовых поясов, можно даже сказать самых странных — так как страннее, пожалуй, уже некуда.

https://habr.com/ru/companies/ruvds/articles/856780/

#ruvds_перевод #часовые_пояса #timezone #лордхау #utc #gmt #программирование #tzdb #zoneinfo #tzif

#TimeZones are some of the weirdest things you encounter in #programming:

“Australia/Lord_Howe Is the Weirdest Timezone”, Ulysse Carion (https://ssoready.com/blog/engineering/truths-programmers-timezones/).

Via HN: https://news.ycombinator.com/item?id=41992314

On Lobsters: https://lobste.rs/s/ktjpvq/australia_lord_howe_is_weirdest_timezone

#UTC #TZ #DST #Time #TzInfo #TZDB

Recently I was preparing a talk for the fwdays PHP in Kyiv. A talk about internationalization. And gues what: One of the parts of internationalization is: Timezones. Yes, I know, I am fond of them and all but that’s not what this is going to be about.

In the talk I am showing how to propperly render a datetime for a given locale in a given timezone using […]

https://andreas.heigl.org/2024/07/14/how-to-keep-your-icu-version-up-to-date-when-using-the-php-intl-extension/

TIL: before 1925, (some? British?) astronomers started the GMT day at noon (noon was 00:00:00), so "1924-12-30 23:00:00 GMT" would mean 11am on the morning of what we now call December 31. Be careful when working with historical datetime data, even if it's precisely specified!

As far as I can find, neither lubridate nor clock have a way to deal with this in #RStats. In theory there should be a "Greenwich Mean Astronomical Time" in #tzdb to specify this system, but I don't see it.

@davis