London to Tucson
Live, right now. Europe/London → America/Phoenix · 8,527 km (5,295 miles) apart
Clocks go forward 1 hour on Sunday, 28th March 2027, at 12:59 am local time (2:00 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 | Tucson | 24h | Good to call? |
|---|---|---|---|
| 12am | 5pm Fri | 00:00 → 17:00 | asleep in London |
| 1am | 6pm Fri | 01:00 → 18:00 | asleep in London |
| 2am | 7pm Fri | 02:00 → 19:00 | asleep in London |
| 3am | 8pm Fri | 03:00 → 20:00 | asleep in London |
| 4am | 9pm Fri | 04:00 → 21:00 | asleep in London |
| 5am | 10pm Fri | 05:00 → 22:00 | asleep in Tucson |
| 6am | 11pm Fri | 06:00 → 23:00 | asleep in Tucson |
| 7am | 12am | 07:00 → 00:00 | asleep in Tucson |
| 8am | 1am | 08:00 → 01:00 | asleep in Tucson |
| 9am | 2am | 09:00 → 02:00 | asleep in Tucson |
| 10am | 3am | 10:00 → 03:00 | asleep in Tucson |
| 11am | 4am | 11:00 → 04:00 | asleep in Tucson |
| 12pm | 5am | 12:00 → 05:00 | asleep in Tucson |
| 1pm | 6am | 13:00 → 06:00 | asleep in Tucson |
| 2pm | 7am | 14:00 → 07:00 | awake, not at work |
| 3pm | 8am | 15:00 → 08:00 | awake, not at work |
| 4pm | 9am | 16:00 → 09:00 | both at work |
| 5pm | 10am | 17:00 → 10:00 | awake, not at work |
| 6pm | 11am | 18:00 → 11:00 | awake, not at work |
| 7pm now | 12pm | 19:00 → 12:00 | awake, not at work |
| 8pm | 1pm | 20:00 → 13:00 | awake, not at work |
| 9pm | 2pm | 21:00 → 14:00 | awake, not at work |
| 10pm | 3pm | 22:00 → 15:00 | asleep in London |
| 11pm | 4pm | 23:00 → 16:00 | asleep in London |
Call times
Both places are at work between 4pm and 17:00 in London, 9am to 9am at the other end.
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Questions people ask
What time is it in Tucson when it is 7:40 pm in London?
12:40 pm in Tucson the same day.
How many hours ahead is Tucson of London?
Tucson is 7 hours behind 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 Tucson?
Both places are at work between 4pm and 17:00 in London, 9am to 9am at the other end.
When does the difference between London and Tucson change?
London: Clocks go forward 1 hour on Sunday, 28th March 2027, at 12:59 am local time (2:00 am after the change). Tucson does not change its clocks, so the gap shifts by an hour on that date.