IRST – Iran Standard Time (Standard Time)
Also known as: IT – Iran Time
IRST is currently not used at all
Iran Standard Time (IRST) is 3:30 hours ahead of Coordinated Universal Time (UTC). This time zone is a standard time zone and is used in: Asia. Iran Standard Time is a half-hour time zone. Its local time differs by 30 minutes from the usual one-hour time zone interval.
Summer Time & DST
Email time zone indicator: +0330
An email sent from someone in the Iran Standard Time (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 Iran Standard Time, as other time zones could have the same UTC offset).
Where and when is IRST observed?
Asian countries using IRST in the winter and IRDT in the summer
Time zones by continent/region
- Central America
- Indian Ocean
- North America
- Other time standards
- South America
No locations currently on IRST
Find current time and time zone by city
Iran – Tehran (Winter)
Related time zones
IRDT – Iran Daylight Time (Daylight Time)