Time zone in Tehran
Tehran is on Iran Standard Time (IRST, UTC+3:30) all year, with no daylight saving time. Its identifier in the international time zone database is Asia/Tehran: it is what your phone and computer use to show the right time there.
Iran is on UTC+3:30, half an hour off its neighbors. It abolished daylight saving time in 2022, so the offset no longer moves.
By the sun, noon in Tehran falls at about 12:04 PM (on average over the year). The city lies at 51.39° east, and every degree of longitude shifts the sun by 4 minutes. Clock time is close to sun time here. See the sunrise and sunset times in Tehran.
Time difference with major cities
When it is 12:00 PM (noon) in Tehran, it is:
| City | January | July |
|---|---|---|
| New York | 3:30 AM | 4:30 AM |
| Los Angeles | 12:30 AM | 1:30 AM |
| London | 8:30 AM | 9:30 AM |
| Paris | 9:30 AM | 10:30 AM |
| Tokyo | 5:30 PM | 5:30 PM |
| Sydney | 7:30 PM | 6:30 PM |
The gap with New York, Los Angeles, London, Paris and Sydney changes by one hour during the year: these cities use daylight saving time, Tehran does not.
Best time to call Tehran from New York
To reach someone at work in Tehran from New York: in January, the best window is from 8:00 AM to 9:30 AM in New York, which is 4:30 PM to 6:00 PM in Tehran. In July, the best window is from 8:00 AM to 10:30 AM in New York, which is 3:30 PM to 6:00 PM in Tehran.
For any other city, use the time zone converter or add it to the world clock.