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burntsushi 3 days ago

> Datetime + tz name: a point in time and space that is responsive to time zone changes

No. It isn't a point in time, because time zone transition rules can and do change. You need an offset as well. Then you can choose which thing you want to prioritize[1] when converting it to an instant in time.

This is what RFC 9557 is for.

[1]: https://docs.rs/jiff/latest/jiff/tz/enum.OffsetConflict.html

lmm 3 days ago | parent [-]

What use case is there for preferring the offset (that wouldn't be better served by using instants)?