I am using 4.2-stable and apparently Daylight saving doesn't declared for
/usr/share/zoneinfo/Iran
Proper handling of DST can be checked by running "zdump -v -c
/usr/share/zoneinfo/Iran".
I'm sorry that our dumb government didn't applied DST for two years
(2006,2007), they resumed to apply DST from 2008. So i guess that's the
reason for "isdst=0" from 2006 to 2038 in this file.
Corrected version should be:
/usr/share/zoneinfo/Iran Mon Mar 21 20:30:00 2008 UTC = Tue Mar 22
01:00:00 2008 IRDT isdst=1
/usr/share/zoneinfo/Iran Wed Sep 21 19:29:59 2008 UTC = Wed Sep 21
23:59:59 2008 IRDT isdst=1
And so on for next years.
Cheers,
Mani.