Iran's exact law for re-instating daylight saving

Paul Schauble Paul.Schauble at
Wed Nov 7 14:06:09 UTC 2007

I think there. Is an additional complication here. I believe the Persian calendar begins on the day of the true equinox. This varies over about a 2 day period so there is not a fixed correspondence between Persiam dates and Gregorian.

I'm sure I will be corrected if need be.


----- Original Message -----
From: Roozbeh Pournader <roozbeh at>
To: Paul Eggert <eggert at CS.UCLA.EDU>
Cc: tz at <tz at>
Sent: Wed Nov 07 05:09:15 2007
Subject: Re: Iran's exact law for re-instating daylight saving

On Tue, 2007-11-06 at 00:27 -0800, Paul Eggert wrote:
> Thanks for the citation.  That "24 hours" worries me a bit; it's not
> clear to me whether it means midnight at the start or at the end of
> the day. 

It's the midnight at the end of the day.

> Just to double check, are the current transitions OK?

Yes. The law is basically reinstating the 1991 regulation of President
Rafsanjani's board of ministers which was canceled by President
Ahmadinejad's board of ministers a few days before daylight saving was
supposed to come into effect again in 2006.

BTW, the funny thing is that Hassan Habibi, the First Vice President
that signed the 1991 regulation, and Gholam Ali Haddad-Adel, the
Parliament's Speaker who signed the 2007 one, have been the only two
presidents of Iranian Academy of Persian Language and Literature since
its revival in 1990. Habibi became the Academy's President when it was
recreated (while also serving as First Vice President) and was replaced
by Haddad-Adel after his term finished. But later, Haddad-Adel resigned
from the post when he became the Parliament's Speaker, leading in Habibi
filling his original position again.


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