Time difference between London and Tehran
Tehran is 3.5 hours ahead of London.
London
07:42:27 PM
Wednesday, November 4, 2026
Europe/London · UTC+00:00
Tehran
11:12:27 PM
Wednesday, November 4, 2026
Asia/Tehran · UTC+03:30
Tehran is 3.5 hours ahead of London
London
Wed, Nov 4 · UTC+00:00
Tehran +3.5 h
Wed, Nov 4 · UTC+03:30
Green = office hours (9:00–18:00). Click a column to pick that time.
| London | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tehran | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 0 | 1 | 2 |
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Tehran is 3.5 hours ahead of London. Right now London (United Kingdom) is on UTC+00:00 and Tehran (Iran) on UTC+03:30: when it is 12:00 in London, it is 15:30 in Tehran. The difference is not fixed: it changes when either place switches to or from daylight saving time.
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Time difference throughout the year
| From | To | Difference |
|---|---|---|
| Wednesday, November 4, 2026 | Saturday, March 27, 2027 | Tehran is 3.5 hours ahead of London |
| Sunday, March 28, 2027 | Saturday, October 30, 2027 | Tehran is 2.5 hours ahead of London |
| Sunday, October 31, 2027 | Thursday, November 4, 2027 | Tehran is 3.5 hours ahead of London |
London to Tehran time conversion
| London | Tehran |
|---|---|
| 00:00 | 03:30 |
| 01:00 | 04:30 |
| 02:00 | 05:30 |
| 03:00 | 06:30 |
| 04:00 | 07:30 |
| 05:00 | 08:30 |
| 06:00 | 09:30 |
| 07:00 | 10:30 |
| 08:00 | 11:30 |
| 09:00 | 12:30 |
| 10:00 | 13:30 |
| 11:00 | 14:30 |
| 12:00 | 15:30 |
| 13:00 | 16:30 |
| 14:00 | 17:30 |
| 15:00 | 18:30 |
| 16:00 | 19:30 |
| 17:00 | 20:30 |
| 18:00 | 21:30 |
| 19:00 | 22:30 |
| 20:00 | 23:30 |
| 21:00 | 00:30 (next day) |
| 22:00 | 01:30 (next day) |
| 23:00 | 02:30 (next day) |
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Best time to call
Office hours (9:00 to 18:00) overlap from 09:00 to 14:59 in London, which is 12:30 to 17:30 in Tehran.
Frequently asked questions
Tehran is 3.5 hours ahead of London. The difference is not fixed: it changes when either place switches to or from daylight saving time.
It is 12:30.
It is 23:30.
From Sunday, March 28, 2027: Tehran is 2.5 hours ahead of London. From Sunday, October 31, 2027: Tehran is 3.5 hours ahead of London.
Office hours (9:00 to 18:00) overlap from 09:00 to 14:59 in London, which is 12:30 to 17:30 in Tehran.