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The current time in Tehran, Iran is shown live on this page. Tehran is in the Asia/Tehran timezone, which has a UTC offset of UTC+03:30 (GMT+3:30). Tehran observes daylight saving time, switching between IRST (UTC+03:30) and IRDT (UTC0:3.5) annually. Tehran has a population of approximately 9.1M people. Tehran uses IRR and the international calling code for Iran is ++98. Other cities in the same timezone include Mashhad, Isfahan, Tabriz.
Now in IR
Timezone
Asia/Tehran
UTC offset
UTC+03:30
Standard
IRST
DST
IRDT
Local time guide
Use this page when you need the live local time in Tehran for meetings, travel plans, event schedules, support hours, or international calls. London is currently 2 hours 30 minutes behind Tehran. New York is currently 7 hours 30 minutes behind Tehran.
At a glance
Quick compare
Timezone
Asia/Tehran
UTC Offset
UTC+03:30
Abbreviation
GMT+3:30
DST
Not active
Region
Southern Asia
Country
Iran
State / Area
Tehran
Calling Code
+98
Nearest timezone boundary
The nearest major city that uses a different timezone is Baku, approximately 541 km away. Baku uses the Asia/Baku timezone. When it is the current time in Tehran, the time in Baku is different by 0.5 hours.
City profile
Tehran is located in Iran, Iran, in the Asia continent. The primary language spoken here is Persian. The city has a population of approximately 9.1M, ranking it #27 in Iran by size. For timezone purposes, Tehran uses Asia/Tehran (UTC+03:30). It observes daylight saving time, switching between IRST and IRDT depending on the time of year.
Travel and calls
Tehran does not observe daylight saving time, so its clock stays consistent throughout the year.
Tehran does not observe Daylight Saving Time.
Time comparison
Here is what time it is in other major cities when it is 12:00 AM (midnight) in Tehran. This is useful for planning calls and understanding the time difference at a fixed reference point.
Daylight hours
Based on Tehran's latitude (35.7°N), the estimated daylight duration for this month is approximately 14.2 hours, with sunrise around 4:54 AM and sunset around 7:06 PM. At this mid-latitude, daylight hours shift noticeably between seasons, with longer days in summer and shorter days in winter.
Best time to call
For work calls, the standard business window in Tehran is roughly 9:00 AM to 5:00 PM GMT+3:30. If the other party is in a distant timezone, verify the exact date before sending a calendar invite — daylight saving transitions can shift the overlap by an hour without warning.
Business hours in Tehran (12:00 PM - 6:00 PM) overlap with London starting at 9:30 AM. The best window for calls between these two cities is 6 hours per day. Business hours overlap: 12:00 PM - 6:00 PM in Tehran time.
Local planning notes
Best call window
The optimal window for calls between Tehran and London is 12:00 PM - 6:00 PM in Tehran time (6 overlapping hours).
Daylight saving impact
Tehran switches between IRST and IRDT each year. Recurring meetings may shift by an hour during transitions. Upcoming transitions: check the DST section above for exact dates.
Travel essentials
For travel and business planning, Tehran uses IRR and the calling code for Iran is +98. Languages spoken here include Persian. The city has a population of around 9.1M, making it a major regional hub for timezone planning in Southern Asia.
Timezone context
The nearest timezone boundary is 541 km away at Baku (AZT). This is a moderate distance, but the timezone difference can affect daily coordination.
Popular conversions
The most relevant time conversions for Tehran are with nearby Southern Asia cities and major global hubs in different timezones.
Timezone boundaries nearby
The closest cities that operate in a different timezone than Tehran. Useful for understanding where the timezone boundary falls and how local times differ just a short distance away.
Same timezone
Mashhad, Isfahan, Tabriz, Shiraz share the Asia/Tehran timezone with Tehran. These cities have the same current offset and follow the same daylight saving schedule, so they are useful alternatives when comparing local time across the region.
Embed this clock
Embed a live Tehran clock on your website. The widget is fully responsive, lightweight, and free to use.
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