[tz] More than 2 transitions per year for Asia/Gaza & Hebron in 2068+

[Dave Rolsky]

Ah, ok. Thanks for the quick clarification!

Cheers,

Dave Rolsky
http://blog.urth.org
https://github.com/autarch


On Sat, Dec 30, 2023 at 2:49 PM Paul Goyette <paul at whooppee.com> wrote:

> On Sat, 30 Dec 2023, Dave Rolsky via tz wrote:
>
> > Hi all,
> >
> > With the latest release (2023d) I'm seeing some surprising output from
> > zdump for the Asia/Gaza & Asia/Hebron zones:
> >
> > $> zdump -v Asia/Hebron
> > ...
> > Asia/Hebron  Fri Mar 23 23:59:59 2068 UT = Sat Mar 24 01:59:59 2068 EET
> > isdst=0 gmtoff=7200
> > Asia/Hebron  Sat Mar 24 00:00:00 2068 UT = Sat Mar 24 03:00:00 2068 EEST
> > isdst=1 gmtoff=10800
> > Asia/Hebron  Fri Oct 19 22:59:59 2068 UT = Sat Oct 20 01:59:59 2068 EEST
> > isdst=1 gmtoff=10800
> > Asia/Hebron  Fri Oct 19 23:00:00 2068 UT = Sat Oct 20 01:00:00 2068 EET
> > isdst=0 gmtoff=7200
> > Asia/Hebron  Fri Mar 29 23:59:59 2069 UT = Sat Mar 30 01:59:59 2069 EET
> > isdst=0 gmtoff=7200
> > Asia/Hebron  Sat Mar 30 00:00:00 2069 UT = Sat Mar 30 03:00:00 2069 EEST
> > isdst=1 gmtoff=10800
> > Asia/Hebron  Fri Oct 11 22:59:59 2069 UT = Sat Oct 12 01:59:59 2069 EEST
> > isdst=1 gmtoff=10800
> > Asia/Hebron  Fri Oct 11 23:00:00 2069 UT = Sat Oct 12 01:00:00 2069 EET
> > isdst=0 gmtoff=7200
> >
> >
> > This pattern of >2 transitions per year continues from that year.
> >
> > Is this correct? It seems awfully weird.
>
> IIRC, this is to accomodate a temporary-return-to-standard-time for
> the duration of Ramadan.
>
>
> > Cheers,
> >
> > Dave Rolsky
> > http://blog.urth.org
> > https://github.com/autarch
> >
> >
> > !DSPAM:658fb40d15421143672522!
> >
>
> +---------------------+--------------------------+----------------------+
> | Paul Goyette (.sig) | PGP Key fingerprint:     | E-mail addresses:    |
> | (Retired)           | 1B11 1849 721C 56C8 F63A | paul at whooppee.com    |
> | Software Developer  | 6E2E 05FD 15CE 9F2D 5102 | pgoyette at netbsd.org  |
> | & Network Engineer  |                          | pgoyette99 at gmail.com |
> +---------------------+--------------------------+----------------------+
>
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