timezone
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Timezones are regions with a uniform time offset from UTC, used for activities in that region, including when blog posts are published or edited, and are often a challenge in software due to both regular (DST) changes, and occasional political changes.
Why
Using your local timezone, e.g. for publishing, helps you keep something in common with the times that people use in your local area.
IndieWeb Examples
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Tantek
Tantek รelik stores and publishes his posts in his home timezone (including DST if any) since he started blogging in 2002, no matter where he is publishing from, e.g. when traveling in other timezones.
Niklas Siefke
Niklas Siefke stores post dates with their full local timezone offset (e.g. 2026-07-20T23:30:00+02:00), never as UTC.
When Micropub clients don't send a published timestamp, the server generates one using a configurable AUTHOR_TZ environment variable (default Europe/Oslo). URLs follow the author's wall-clock calendar day, computed from the stored offset rather than UTC. Display shows the numeric offset with a hover tooltip revealing the visitor's local time.
Articles
- 2018-05 Zach Holman UTC is enough for everyone...right?
Criticism
timezones are a way to create dependencies in your code on legislative bodies in countries you have never heard of.
- https://twitter.com/kevinmarks/status/458358080690868224
- https://www.theguardian.com/world/2023/mar/26/lebanon-split-into-two-time-zones-in-row-over-daylight-saving
Humor
See Also
- geocoding
- Z
- time
- https://davecturner.github.io/2018/08/12/working-with-timezones.html
- [https://github.com/evansiroky/timezone-boundary-builder
- Challenges with marking up: https://twitter.com/PeterNikolow/status/1090258923146207233
- "Dates... haha just add timezone and often can see "why time in SERP is different than HTML?" in Webmasters forums" @PeterNikolow January 29, 2019
- The public domain Time Zone Database is publicly maintained on GitHub. The NEWS file makes for interesting reading on โlegislative bodiesโ shaking things up.
- https://codeblog.jonskeet.uk/2019/03/27/storing-utc-is-not-a-silver-bullet/
