[tz] Java & Rearguard

Brian Inglis Brian.Inglis at SystematicSw.ab.ca
Sat Jun 1 13:00:10 UTC 2019

On 2019-06-01 01:43, Paul Eggert wrote:
> Brandon Smith wrote:
>> we now have a situation in which the transition from DST off to DST on
>> results in an ambiguous local time period for Ireland.
> For what it's worth, this particular situation is not new in tzdata. For
> example, Europe/Kiev has a transition from +03 (without DST) to +02 (with DST)
> on 1941-09-19 at 24:00, which means that timestamps that day between 23:00 and
> 24:00 are ambiguous in Kiev. This transition has been present since the release
> of tzdata 1999j two decades ago. I'm sure there are other examples.

Every time zone that has seasonal offset changes has periods per year where
local time does not exist (spring forward) and ambiguous duplicated local time
periods (fall back).
Or am I missing something different?

Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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