IRST – Iran Standard Time (Standard Time)
Also known as: IT – Iran Time
IRST is currently not used at all
Asia: IRST is currently not observed because locations are on summer time / daylight saving time and are observing IRDT.
Observes IRST part of the year.
Areas with same time currently (UTC +3:30).
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 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
Some places observe daylight saving time/summer time during the summer, and therefore use IRDT (Iran Daylight Time) in the summer.
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?
Asia
Asian countries using IRST in the winter and IRDT in the summer
- Iran
No locations currently on IRST
Find current time and time zone by city
Example cities
Iran – Tehran (Winter)
Related time zones
IRDT – Iran Daylight Time (Daylight Time)
Time Zone Map with DST
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