Tehran to London: time difference
London is 2 h 30 min behind Tehran. Live clocks for both, the working hours they share, and how each one sits against your own time.
−2 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Tehran 08:24 8:24 AM London 05:54 5:54 AM You –:–
08:24 8:24 AM
Iran Standard Time · UTC+3:30
☀️ 06:07 · 🌙 17:37
05:54 5:54 AM
British Summer Time · UTC+1
☀️ 07:16 · 🌙 18:20
·
−2 h 30 min
London is 2 h 30 min behind Tehran.
When you, Tehran and London are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇷 Tehran
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇬🇧 London
21:30 9:30 PM 22:30 10:30 PM 23:30 11:30 PM 0:30 12:30 AM 1:30 1:30 AM 2:30 2:30 AM 3:30 3:30 AM 4:30 4:30 AM 5:30 5:30 AM 6:30 6:30 AM 7:30 7:30 AM 8:30 8:30 AM 9:30 9:30 AM 10:30 10:30 AM 11:30 11:30 AM 12:30 12:30 PM 13:30 1:30 PM 14:30 2:30 PM 15:30 3:30 PM 16:30 4:30 PM 17:30 5:30 PM 18:30 6:30 PM 19:30 7:30 PM 20:30 8:30 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇷 Tehran | 🇬🇧 London |
|---|---|---|
| Local time | 08:24 | 05:54 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Iran Standard Time | British Summer Time |
| UTC offset | UTC+3:30 | UTC+1 |
| Offset from Tehran | — | −2 h 30 min |
| IANA zone | Asia/Tehran | Europe/London |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:07 | 07:16 |
| Sunset | 17:37 | 18:20 |
| Daylight | 11 h 31 min | 11 h 4 min |
| People on this clock | 8,000,000 | 8,908,083 |
Compare Tehran with another city
More comparisons with Tehran: the time zones next to it and the far side of the clock.
Big time differences
Tehran and London: common questions
What is the time difference between Tehran and London?
London is 2 hours and 30 minutes behind: it uses UTC+1, while Tehran is on UTC+3:30.
What time is it in London at the start of the working day in Tehran?
The working day in Tehran starts at 9:00 AM; in London it is 6:30 AM at that moment.
What time is it in London when it is 6:00 PM in Tehran?
When it is 6:00 PM in Tehran, it is 3:30 PM in London.
Is there a time when both Tehran and London are at work?
Yes: from 11:30 AM to 6:00 PM in Tehran (9:00 AM to 3:30 PM in London), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in London?
Until 2:30 AM in Tehran it is still the previous day in London. The other way round, from 9:30 PM in London it is already the next day in Tehran.
Does the time difference between Tehran and London change?
Yes. The clocks change only in London. From October 25, 2026, London will be 3 hours and 30 minutes behind Tehran.
