Also known as: IRST – Iran Summer Time, IDT – Iran Daylight Time
Iran Daylight Time (IRDT) is 4:30 hours ahead of Coordinated Universal Time (UTC). This time zone is a Daylight Saving Time time zone and is used in: Asia. Iran Daylight Time is a half-hour time zone. Its local time differs by 30 minutes instead of the normal whole hour.
Winter Time & DST
This time zone is a daylight saving/summer time zone, in the winter some places will switch to the corresponding standard time zone: IRST (Iran Standard Time).
Where and When is IRDT Observed?
Other Time Zones in UTC +4:30
Some time zones exist that have the same offset as IRDT, but can be found under a different name:
Time zones by continent/region
- Central America
- Indian Ocean
- North America
- South America