Also known as: IT – Iran Time
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
Some places observe daylight saving time/summer time during the summer, and therefore use IRDT (Iran Daylight Time) in the summer.