Asia: IRKST is not observed in any location this year.
Irkutsk Summer Time (IRKST) is 9 hours ahead of Coordinated Universal Time (UTC). This time zone is a Daylight Saving Time time zone and is used in: Asia.
Where and When is IRKST Observed?
This time zone is no longer in use, but some locations may observe the same UTC offset (local time) under a different name.Other Time Zones in UTC +9
Some time zones exist that have the same offset as IRKST, but can be found under a different name: