[tz] Java & Rearguard

Stephen Colebourne scolebourne at joda.org
Thu May 30 09:14:37 UTC 2019

On Wed, 29 May 2019 at 17:05, Paul Ganssle <paul at ganssle.io> wrote:
> Why exactly does Java not want to implement a parser that supports the current version of the tz database? It seems like they should either make the case for why negative DST is not a good feature to support, or they should adjust to the fact that it is a feature that will be present in the time zone database.

It is a compatibility requirement of the main Java libraries
(including icu4j IIUC) that DST is always positive. That isn't going
to change. (Essentially it is a different, and not unreasonable,
definition of what DST means).


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