Asian time zones:

IRST – Iran Standard Time

Current time in Tehran

Wednesday, October 22, 2014 at 1:58:23 AM IRST

Tehran will stay on IRST until Midnight between Saturday, March 21, 2015 and Sunday, March 22, 2015
when clocks are moved to Sunday, March 22, 2015 at 01:00:00IRDT

Find local time and time zone for a location

We recommend looking up by location name, not time zone name.

Time zone offset: UTC + 3:30 hours

IRST is 3 hours and 30 minutes ahead of Coordinated Universal Time (UTC)

Note that during summer daylight saving time/summer time is observed, and IRDT is used instead.

Time zone abbreviation: IRST

Full name is Iran Standard Time

Email time zone indicator: +0330

An email sent from someone in the IRST time zone will have the time zone listed as "+0330" in the headers of the email. (However, "+0330" does not have to be in IRST, as other time zones could have the same UTC offset).

For actual dates DST might be observed, look at the examples below

Where and when is IRST observed?

Countries using IRST in the winter and IRDT during the summer

Time zone maps are under development and will be available later

Example location in IRST

Other time zones in Asia

Go directly through the links below, or see the Asia time zone list

Time zones in other regions

Related links