[tz] Extended winter time

Tim Parenti tim at timtimeonline.com
Mon Mar 13 15:39:41 UTC 2023

On Mon, 13 Mar 2023 at 11:08, heba.hamad via tz <tz at iana.org> wrote:

> We know very well that the announcement is too late and will cause some
> problems  for companies

Thanks for the heads-up, and for acknowledging the difficulty here.

> I will later  send to you the new date exactly for the summer time change .

Please send along the exact transition time as soon as you have it
available.  Since Palestine still plans to implement the clock change,
albeit on a delay, the notice as it exists is not reliably actionable on
our end.  Although we could guess a transition time, if we're wrong, that
would impose downstream costs on software vendors around the world
associated with updating and disseminating repeated tz releases.  So it is
far better for everyone if we can change this once and get it right the
first time, but of course our existing predictions will be wrong in a
little over 11 days (beginning on 25 March), so prompt clarification will
be key.

Less urgently, I note that our predicted March transition dates for 2024
and 2025 also fall within Ramadan.  If similar actions are anticipated in
those years, it would be helpful to have those dates decided within the
next few months so we can have those disseminated in a less rushed fashion.

Tim Parenti

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