UK to Tehran Time Converter
About this conversion
Iran abolished daylight saving in 2022 and now uses UTC+3:30 all year. The half-hour offset makes the UK gap 3.5 hours in winter and 2.5 hours in summer.
When the time difference changes
Changes over the next two years, from daylight saving on either side.
- Sunday, 25 October 2026: Tehran becomes 3.5 hours ahead of UK.
- Sunday, 28 March 2027: Tehran becomes 2.5 hours ahead of UK.
- Sunday, 31 October 2027: Tehran becomes 3.5 hours ahead of UK.
- Sunday, 26 March 2028: Tehran becomes 2.5 hours ahead of UK.
Best time to call or meet
09:00 to 15:00 UK is 11:00 to 17:00 Tehran, 6 hours of shared 09:00 to 17:00 time.
Common times
- 06:00 UK = 08:30 Tehran
- 09:00 UK = 11:30 Tehran
- 12:00 UK = 14:30 Tehran
- 15:00 UK = 17:30 Tehran
- 17:00 UK = 19:30 Tehran
- 20:00 UK = 22:30 Tehran
UK to Tehran hour-by-hour table
Highlighted rows fall within 09:00 to 17:00 on both sides.
| UK | Tehran |
|---|---|
| 00:00 | 02:30 |
| 01:00 | 03:30 |
| 02:00 | 04:30 |
| 03:00 | 05:30 |
| 04:00 | 06:30 |
| 05:00 | 07:30 |
| 06:00 | 08:30 |
| 07:00 | 09:30 |
| 08:00 | 10:30 |
| 09:00 | 11:30 |
| 10:00 | 12:30 |
| 11:00 | 13:30 |
| 12:00 | 14:30 |
| 13:00 | 15:30 |
| 14:00 | 16:30 |
| 15:00 | 17:30 |
| 16:00 | 18:30 |
| 17:00 | 19:30 |
| 18:00 | 20:30 |
| 19:00 | 21:30 |
| 20:00 | 22:30 |
| 21:00 | 23:30 |
| 22:00 | 00:30 (next day) |
| 23:00 | 01:30 (next day) |
Related conversions
Frequently asked questions
What is 15:00 UK in Tehran?
15:00 UK is 17:30 Tehran at the moment. The answer can change by an hour when either side changes its clocks.
What are the shared working hours for UK and Tehran?
09:00 to 15:00 UK is 11:00 to 17:00 Tehran, 6 hours of shared 09:00 to 17:00 time.
When does the UK to Tehran time difference change?
It next changes on Sunday, 25 October 2026, when the gap becomes 3.5 hours ahead of.