Also known as: IT – Iran Time
No locations currently on IRST. Would you like to see IRDT?
Asia: IRST is currently not observed because locations are on summer time / daylight saving time and are observing IRDT.
![Time zone map of IRST](http://webcf.waybackmachine.org/web/20210812184952im_/https://c.tadst.com/gfx/tzpage/irst.1621130400.png?1432)
No locations currently on IRST.
Observes IRST part of the year.
Areas with same time currently (UTC +3:30).
Observes IRST part of the year.
Areas with same time currently (UTC +3:30).
No locations are currently on IRST – Iran Standard Time.
Observes IRST – Iran Standard Time part of the year, but not currently.
Currently has same time zone offset as IRST (UTC +3:30) but different time zone name.
Observes IRST – Iran Standard Time part of the year, but not currently.
Currently has same time zone offset as IRST (UTC +3:30) but different time zone name.
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.