On Thu, 20 Feb 2025 at 19:01, Jonathan Wakely <jwak...@redhat.com> wrote: > > On Thu, 20 Feb 2025 at 18:46, Austin Hill via tz <tz@iana.org> wrote: > > > > Hello - > > > > I recently filed a GitHub issue against the perl DateTime::TimeZone > > library, which uses your database: > > https://github.com/houseabsolute/DateTime-TimeZone/issues/58#issue-2864445920 > > > > I noticed that EST5EDT now resolves to America/New_York. This is > > problematic because the two do not have the same offset - EST5EDT is -5:00 > > and America/New_York is -04:56:02. > > That was the offset prior to 1920, but it's -5:00 now. Is it > meaningful to use EST5EDT for dates before the UNIX epoch? If not, > then any date that might use EST5EDT will have the correct offset.
Your github issue uses the date 0000-01-01 as the example, but it seems pretty meaningless to refer to either America/New_York or EST4EDT for that date. > > > > > My ticket was closed because the behavior appears to be caused by changes > > in your database in commit a0b09c0 > > (https://github.com/eggert/tz/commit/a0b09c0230089252acf2eb0f1ba922e99f7f4a03). > > > > Is this something that you would consider changing? > > > > Thanks! > > - Austin Hill
