Karaj to London: time difference
London is 2 h 30 min behind Karaj. 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.
Karaj 03:32 3:32 AM London 01:02 1:02 AM You –:–
03:32 3:32 AM
Iran Standard Time · UTC+3:30
☀️ 06:15 · 🌙 17:28
01:02 1:02 AM
British Summer Time · UTC+1
☀️ 07:30 · 🌙 18:03
·
−2 h 30 min
London is 2 h 30 min behind Karaj.
When you, Karaj 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
🇮🇷 Karaj
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 | 🇮🇷 Karaj | 🇬🇧 London |
|---|---|---|
| Local time | 03:32 | 01:02 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Iran Standard Time | British Summer Time |
| UTC offset | UTC+3:30 | UTC+1 |
| Offset from Karaj | — | −2 h 30 min |
| IANA zone | Asia/Tehran | Europe/London |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:15 | 07:30 |
| Sunset | 17:28 | 18:03 |
| Daylight | 11 h 13 min | 10 h 33 min |
| People on this clock | 1,712,000 | 8,908,083 |
Compare Karaj with another city
More comparisons with Karaj: the time zones next to it and the far side of the clock.
Big time differences
Karaj and London: common questions
How many hours behind Karaj is London?
The clocks in London are 2 hours and 30 minutes behind those in Karaj (UTC+1 and UTC+3:30).
If it is 9:00 AM in Karaj, what time is it in London?
At 9:00 AM in Karaj, clocks in London show 6:30 AM.
If it is 6:00 PM in Karaj, what time is it in London?
At 6:00 PM in Karaj, clocks in London show 3:30 PM.
When do working hours in Karaj and in London overlap?
Working hours (9:00 AM–6:00 PM) overlap from 11:30 AM to 6:00 PM in Karaj, which is 9:00 AM to 3:30 PM in London.
When does the date change in London compared with Karaj?
The new day starts in London later: until 2:30 AM in Karaj, it is still the previous day there. From 9:30 PM in London, Karaj is already on the next day.
Does the time gap between Karaj and London change during the year?
Yes – daylight saving time is used in London but not in Karaj. From October 25, 2026, London will be 3 hours and 30 minutes behind Karaj.
