Time Difference: London to Tehran
Click a time to convert
London vs Tehran timezone guide
London (UK) uses the Europe/London timezone at UTC+0, while Tehran (Iran) uses Asia/Tehran at UTC+3:30. This means Tehran is 3 hours 30 minutes ahead of London (based on standard offsets — the live difference above accounts for daylight saving time).
Best meeting times between London and Tehran
Standard 9-to-5 working hours overlap by 5.5 hours per day. The shared window is 9am–2:30pm in London, which is 11:30am–5pm in Tehran. Schedule recurring meetings inside that window and both teams stay inside standard working hours.
Hour-by-hour planner
| London | Tehran | Status |
|---|---|---|
| 6am | 8:30am | London early, Tehran early |
| 7am | 9:30am | One side outside 9-to-5 but still awake |
| 8am | 10:30am | One side outside 9-to-5 but still awake |
| 9am | 11:30am | Both at work — ideal meeting time |
| 10am | 12:30pm | Both at work — ideal meeting time |
| 11am | 1:30pm | Both at work — ideal meeting time |
| 12pm | 2:30pm | Both at work — ideal meeting time |
| 1pm | 3:30pm | Both at work — ideal meeting time |
| 2pm | 4:30pm | Both at work — ideal meeting time |
| 3pm | 5:30pm | One side outside 9-to-5 but still awake |
| 4pm | 6:30pm | One side outside 9-to-5 but still awake |
| 5pm | 7:30pm | London evening, Tehran evening |
| 6pm | 8:30pm | London evening, Tehran evening |
| 7pm | 9:30pm | London evening, Tehran evening |
| 8pm | 10:30pm | London evening, Tehran late evening |
| 9pm | 11:30pm | London evening, Tehran late evening |
| 10pm | 12:30am | London late evening, Tehran asleep |
Green = standard working hours (9 AM – 5 PM). Amber = early (6–9 AM). Orange = evening (5–10 PM). Grey = asleep or late.
Daylight saving time between London and Tehran
London observes daylight saving time, but Tehran does not. That means the difference between the two cities changes seasonally — by one hour, around London's transition dates.
- Jan 1 → Mar 29London is 3h 30m behind Tehran
- Mar 29 → Oct 25London is 2h 30m behind Tehran
- Oct 25 → Dec 31London is 3h 30m behind Tehran
Distance between London and Tehran
London and Tehran are 4,397 km apart along the great-circle route. A direct flight takes roughly ~6h 10m, depending on aircraft type, winds, and routing.