Tehran
What time is it in Iran
About Tehran
Tehran holds UTC+3:30 all year — an unusual half-hour offset with no daylight saving. New York is 7.5 hours behind in summer, extending to 8.5 hours behind in winter when US clocks fall back. Government offices on Valiasr Street open at 08:00; the working week runs Saturday through Wednesday, with Thursday a half-day.
Popular Time Differences
Frequently Asked Questions
What time is it in Tehran right now?+
Tehran follows Iran Standard Time (IRST), which is UTC+3:30. During daylight saving, it shifts to Iran Daylight Time (IRDT) at UTC+4:30. You can always check the exact current time in Tehran at the top of this page.
What time zone does Tehran use?+
Tehran uses the Asia/Tehran time zone. Iran is one of the few countries with a half-hour offset — Iran Standard Time is UTC+3:30 in winter and UTC+4:30 during daylight saving time in summer.
Does Tehran observe daylight saving time?+
Yes, Iran observes daylight saving time. Clocks in Tehran are moved forward one hour in late March and set back in late September, following the Iranian calendar cycle.
What is the time difference between Tehran and London?+
Tehran is 3 hours and 30 minutes ahead of London (UTC+0) in winter. When the UK observes BST (UTC+1), the difference becomes 2 hours and 30 minutes. Iran's own daylight saving can shift this further.
What is the time difference between Tehran and New York?+
Tehran is typically 8 hours and 30 minutes ahead of New York (ET, UTC-5) during Eastern Standard Time. During Eastern Daylight Time (UTC-4), the gap is 7 hours and 30 minutes.
Is Tehran ahead of or behind UTC?+
Tehran is ahead of UTC. Iran Standard Time is UTC+3:30, making Tahran one of the easternmost capitals in the Middle East time-wise. During summer daylight saving, the offset increases to UTC+4:30.
What is the time difference between Tehran and Dubai?+
Dubai operates on Gulf Standard Time (GST, UTC+4), which does not observe daylight saving. In winter, Tehran (UTC+3:30) is 30 minutes behind Dubai. In summer, when Tehran shifts to UTC+4:30, it is actually 30 minutes ahead of Dubai.