Tehran keeps UTC+3:30 all year. There is no daylight saving time, so the clock never changes.
Tehran and your time
Tehran at a glance
| Country | Iran |
|---|---|
| Region | Tehran |
| Capital of | Iran |
| Time zone | Asia/Tehran |
| UTC offset now | UTC+3:30 |
| Daylight saving time | Not observed since 2022 |
| Coordinates | 35.69° N, 51.42° E |
Tehran time zone and clock changes
Tehran follows the Asia/Tehran time zone and stays on UTC+3:30 all year. Clocks here last changed for daylight saving time in 2022; the tz database lists no change after that.
The offset includes half an hour, so the gap between Tehran and most other cities is a whole number of hours plus 30 minutes.
Tehran is the capital, and all of Iran keeps this time.
Clock changes in Tehran, 2026 and 2027
No clock changes are scheduled in Tehran for 2026 or 2027.
How far ahead or behind Tehran is
Take 9:00 AM in Tehran: the clock reads 12:30 AM in New York, 4:30 PM in Sydney and 9:30 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 8 h 30 min behind | 8 h 30 min behind | 7 h 30 min behind | None |
| Los Angeles (United States) | --:-- | 11 h 30 min behind | 11 h 30 min behind | 10 h 30 min behind | None |
| London (United Kingdom) | --:-- | 3 h 30 min behind | 3 h 30 min behind | 2 h 30 min behind | 4 h 30 min |
| Paris (France) | --:-- | 2 h 30 min behind | 2 h 30 min behind | 1 h 30 min behind | 5 h 30 min |
| Dubai (United Arab Emirates) | --:-- | 30 min ahead | 30 min ahead | 30 min ahead | 7 h 30 min |
| Mumbai (India) | --:-- | 2 h ahead | 2 h ahead | 2 h ahead | 6 h |
| Singapore | --:-- | 4 h 30 min ahead | 4 h 30 min ahead | 4 h 30 min ahead | 3 h 30 min |
| Tokyo (Japan) | --:-- | 5 h 30 min ahead | 5 h 30 min ahead | 5 h 30 min ahead | 2 h 30 min |
| Sydney (Australia) | --:-- | 7 h 30 min ahead | 7 h 30 min ahead | 6 h 30 min ahead | 30 min |
| UTC | --:-- | 3 h 30 min behind | 3 h 30 min behind | 3 h 30 min behind | 4 h 30 min |
Because Tehran keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Daylight in Tehran
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Day length in Tehran runs from 9 hours 44 minutes at the December solstice to 14 hours 35 minutes at the June solstice. The latest sunset, at 7:24 PM, comes on June 28.
Daylight through the year in Tehran
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:08 AM | 6:16 PM | 12 h 7 min |
| June solstice | June 21 | 4:49 AM | 7:23 PM | 14 h 35 min |
| September equinox | September 23 | 5:53 AM | 6:00 PM | 12 h 7 min |
| December solstice | December 22 | 7:11 AM | 4:55 PM | 9 h 44 min |
Clock time and sun time in Tehran
Clock time and sun time line up fairly well in Tehran: solar noon falls at about 12:05 PM on standard time.
Places close to Tehran
All the places listed below keep the same time as Tehran.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Qarchak | 33 km (20 mi) | --:-- | Same time |
| Pakdasht | 34 km (21 mi) | --:-- | Same time |
| Pardis | 36 km (22 mi) | --:-- | Same time |
| Karaj | 42 km (26 mi) | --:-- | Same time |
| Varamin | 46 km (29 mi) | --:-- | Same time |
| Nazarabad | 79 km (49 mi) | --:-- | Same time |
| Chalus | 107 km (66 mi) | --:-- | Same time |
| Amol | 120 km (75 mi) | --:-- | Same time |
More cities in Iran
All time zones and cities in Iran
Plan around the time in Tehran
- Convert a time to or from Tehran: pick a date and time and see it in every city on your list.
- Add Tehran to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Tehran and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Tehran in?
Tehran uses the Asia/Tehran time zone, which is UTC+3:30 all year.
Does Tehran use daylight saving time?
Not any more. Tehran last changed its clocks for daylight saving time in 2022 and now stays on UTC+3:30 all year.
What is the time difference between Tehran and New York?
Tehran is 8 hours 30 minutes ahead of New York in January and 7 hours 30 minutes ahead of New York in July, because New York moves its clocks for daylight saving time and Tehran does not.
How long is the longest day in Tehran?
About 14 hours 35 minutes, around the June solstice. The shortest day, around the December solstice, has about 9 hours 44 minutes of daylight.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.