Time difference between London and Tucson
Compare the current local time in London and Tucson, see when your working hours overlap, and convert any specific hour between the two timezones.
--:--
—
--:--
—
Convert a specific time
--:--
--:--
Working-hours overlap
When London's 9:00–17:00 business hours overlap with Tucson's.
London working hours
Tucson working hours
Overlap (both working)
🇬🇧 London
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
🇺🇸 Tucson
Scheduling across London and Tucson
Scheduling between London and Tucson is hard. Their standard business hours do not overlap on the same day, but the two working days meet at a single point: London's close at 17:00 coincides exactly with Tucson's open at 09:00. A call timed to that boundary catches both sides at the edge of their day.
Quick reference
| 🇬🇧 London | 🇺🇸 Tucson | In Tucson it's… |
|---|---|---|
| 06:00 — Early morning | — | — |
| 09:00 — Start of work | — | — |
| 12:00 — Lunchtime | — | — |
| 15:00 — Mid-afternoon | — | — |
| 17:00 — End of work | — | — |
| 20:00 — Evening | — | — |
Daylight saving status
🇬🇧 London
Currently in BST (daylight saving)
Clocks go back to GMT
on Sunday 25 October 2026
🇺🇸 Tucson
Tucson does not observe daylight saving time. The local offset is fixed year-round.