IRST – Iran Standard Time (Standard Time)
Also known as: IT – Iran Time
No locations currently on IRST. Would you like to see IRDT?
Please use the search field on the right to find the correct local time in any city.
Iran Standard Time (IRST) is 3:30 hours ahead of Coordinated Universal Time (UTC). This time zone is in use during standard time in: Asia. Iran Standard Time is a half-hour time zone. Its local time differs by 30 minutes instead of the normal whole hour.
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
- 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)