London to Karaj
Converting a fixed time. Europe/London → Asia/Tehran · 4,359 km (2,707 miles) apart
Clocks go back 1 hour on Sunday, 25th October 2026, at 1:59 am local time (1:00 am after the change).
Clocks here do not change — this zone stays on the same offset all year.
Convert a specific time minutes work, not just whole hours
Hour by hour
| London | Karaj | 24h | Good to call? |
|---|---|---|---|
| 12am | 2am | 00:00 → 02:30 | asleep in Karaj |
| 1am | 3am | 01:00 → 03:30 | asleep in Karaj |
| 2am | 4am | 02:00 → 04:30 | asleep in Karaj |
| 3am | 5am | 03:00 → 05:30 | asleep in Karaj |
| 4am | 6am | 04:00 → 06:30 | asleep in Karaj |
| 5am | 7am | 05:00 → 07:30 | asleep in London |
| 6am | 8am | 06:00 → 08:30 | asleep in London |
| 7am | 9am | 07:00 → 09:30 | awake, not at work |
| 8am | 10am | 08:00 → 10:30 | awake, not at work |
| 9am now | 11am | 09:00 → 11:30 | both at work |
| 10am | 12pm | 10:00 → 12:30 | both at work |
| 11am | 1pm | 11:00 → 13:30 | both at work |
| 12pm | 2pm | 12:00 → 14:30 | both at work |
| 1pm | 3pm | 13:00 → 15:30 | both at work |
| 2pm | 4pm | 14:00 → 16:30 | both at work |
| 3pm | 5pm | 15:00 → 17:30 | awake, not at work |
| 4pm | 6pm | 16:00 → 18:30 | awake, not at work |
| 5pm | 7pm | 17:00 → 19:30 | awake, not at work |
| 6pm | 8pm | 18:00 → 20:30 | awake, not at work |
| 7pm | 9pm | 19:00 → 21:30 | awake, not at work |
| 8pm | 10pm | 20:00 → 22:30 | asleep in Karaj |
| 9pm | 11pm | 21:00 → 23:30 | asleep in Karaj |
| 10pm | 12am Fri | 22:00 → 00:30 | asleep in Karaj |
| 11pm | 1am Fri | 23:00 → 01:30 | asleep in Karaj |
Call times
Both places are at work between 9am and 15:00 in London — 11am to 4pm at the other end.
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Questions people ask
What time is it in Karaj when it is 7:45 pm in London?
10:15 pm in Karaj the same day.
How many hours ahead is Karaj of London?
Karaj is 2 hours 30 minutes ahead London. That gap is not fixed: it changes when either place starts or ends daylight saving. The table on this page is recalculated for today, so it is already correct for the current season.
What is the best time to call between London and Karaj?
Both places are at work between 9am and 15:00 in London — 11am to 4pm at the other end.
When does the difference between London and Karaj change?
London: Clocks go back 1 hour on Sunday, 25th October 2026, at 1:59 am local time (1:00 am after the change). Karaj does not change its clocks, so the gap shifts by an hour on that date.