[tz] Java & Rearguard

Stephen Colebourne scolebourne at joda.org
Thu Jun 6 09:25:52 UTC 2019

On Wed, 5 Jun 2019 at 21:41, Paul Eggert <eggert at cs.ucla.edu> wrote:
> See the example at the end of this email, where
> OpenJDK 12 says that local time should be called "GMT" / "Greenwich Mean
> Time" in Ireland on January 1, 1970, which is obviously wrong as Irish
> clocks were one hour ahead of UTC then (and Java gets the UTC offset
> right) and nobody on the ground then would have called that time "GMT".

Java has never provided accurate time zone names for historic times. I
doubt any system does (not counting tzdb because the zone names are
being systematically destroyed in tzdb). I'd also suggest that there
would be limited demand for this, and it would be a lot of work.


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