It’s About Time! Practical examples of time zones in TypeScript
summary
Practical, code-level takeaways for TypeScript: JavaScript Date is unreliable for time zones, parsers, mutable objects and DST edge cases (one-millisecond add can roll you across DST); use Luxon for immutable, zone-aware DateTime, Duration and Interval types and to preserve or convert offsets; plan storage by keeping user time zone on user-generated timestamps versus UTC for system events; expect the upcoming Temporal polyfill and prefer UTC vs local transparency in logs and UIs.
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chapters (13)
- 0:00Time zones in software
- 3:09Politics shaping time zones
- 10:16Time zone challenges
- 13:54JavaScript time zone pitfalls
- 21:43Database datetime storage
- 23:05JavaScript time formats
- 27:37JavaScript time math issues
- 31:14Date object problems
- 33:19Moment.js no longer viable
- 34:21Choosing a datetime library
- 35:24Luxon time zone features
- 42:07Future of JavaScript time with Temporal
- 47:46Key takeaways
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