Tehran to London Time Difference
🇮🇷 Tehran is currently 3.5 hours behind of 🇬🇧 London. This difference varies between 3.5h and 2.5h due to Daylight Saving Time.
Live Calculator
Atin 🇮🇷 Tehran→it will be—in 🇬🇧 London
Open full calculator →DST-accurate · shareable link
Difference
-3.5h
Business overlap
6h
Distance
4,397 km
Approx. flight
5.2h
Hour-by-Hour: Tehran to London
| 🇮🇷 Tehran | 🇬🇧 London | Note |
|---|---|---|
| 12:00 AM | 8:30 PM(prev day) | Previous day |
| 1:00 AM | 9:30 PM(prev day) | Previous day |
| 2:00 AM | 10:30 PM(prev day) | Previous day |
| 3:00 AM | 11:30 PM(prev day) | Previous day |
| 4:00 AM | 12:30 AM | |
| 5:00 AM | 1:30 AM | |
| 6:00 AM | 2:30 AM | |
| 7:00 AM | 3:30 AM | |
| 8:00 AM | 4:30 AM | |
| 9:00 AM | 5:30 AM | |
| 10:00 AM | 6:30 AM | |
| 11:00 AM | 7:30 AM | |
| 12:00 PM | 8:30 AM | |
| 1:00 PM | 9:30 AM | |
| 2:00 PM | 10:30 AM | |
| 3:00 PM | 11:30 AM | |
| 4:00 PM | 12:30 PM | |
| 5:00 PM | 1:30 PM | |
| 6:00 PM | 2:30 PM | |
| 7:00 PM | 3:30 PM | |
| 8:00 PM | 4:30 PM | |
| 9:00 PM | 5:30 PM | |
| 10:00 PM | 6:30 PM | |
| 11:00 PM | 7:30 PM |
Daylight Saving Time (DST)
London observes Daylight Saving Time, while Tehran does not. This causes the time difference to shift between 3.5 hours behind and 2.5 hours behind depending on the season. Currently, Tehran is 3.5 hours behind relative to London.
Min difference
3.5h
Max difference
2.5h
Best Meeting Times
There are 6 overlapping business hours between Tehran and London (9 AM – 6 PM in each city).
🇮🇷 Tehran
12:00 PM – 6:00 PM
🇬🇧 London
8:30 AM – 2:30 PM
Frequently Asked Questions
What is the time difference between Tehran and London?
The time difference between Tehran and London is currently 3.5 hours behind. Tehran uses GMT+3:30 (UTC+3:30), while London uses GMT (UTC+0). This difference varies seasonally due to Daylight Saving Time, ranging from 3.5 hours behind to 2.5 hours behind.
When it's noon in Tehran, what time is it in London?
When it's 12:00 PM (noon) in Tehran, it is 8:30 AM in London. Use our calculator above to convert any other time.
Does the time difference between Tehran and London change?
Yes, the time difference changes throughout the year. Because London observes Daylight Saving Time, the offset shifts between 3.5 hours behind and 2.5 hours behind at different times of the year.
What are the best times to schedule a call between Tehran and London?
The best time to call is between 12:00 PM and 6:00 PM in Tehran (which is 8:30 AM – 2:30 PM in London). This 6-hour window falls within business hours in both cities.
Is Tehran ahead or behind London?
Tehran is currently 3.5 hours ahead of London.
What time zone is Tehran in?
Tehran is in the Asia/Tehran time zone, currently using GMT+3:30 (UTC+3:30). Tehran does not observe Daylight Saving Time.
What time is midnight in Tehran in London?
When it is midnight (12:00 AM) in Tehran, it is 8:30 PM in London.