Phoenix and London working-hours overlap
On Monday, 28 September 2026, Phoenix is 8 hours behind London — UTC-07:00 against UTC+01:00. They share no working hours that day at all: Phoenix works 16:00–00:00 UTC and London works 08:00–16:00 UTC, and those two windows do not meet. Phoenix does not change clocks at all. London changes clocks on Sunday, 25 October 2026, and the gap between them goes from 8 hours to 7 hours.
Every figure on this page describes Monday, 28 September 2026 — a fixed day, not the day you are reading it. Working hours are 09:00–17:00 local time for both cities; change either, or pick another date, in the overlap calculator.
Shared working hours
No shared working hours on this date.
On this date the two working days do not meet. Widening one side’s hours or choosing another date is what changes it; the table below shows the months where the two working days do meet.
Each city's working day
| City | Local hours | In UTC | Offset | Next clock change |
|---|---|---|---|---|
| Phoenix | 09:00–17:00 | 16:00–00:00 UTC | UTC-07:00 | No daylight saving |
| London | 09:00–17:00 | 08:00–16:00 UTC | UTC+01:00 | UTC+01:00 → UTC+00:00, 25 Oct 2026 |
How the shared window moves through the year
London changes clocks on Sunday, 25 October 2026, and Phoenix never does, so the gap between them moves only when London's clocks do. Each row is the same pair of working days, sampled once a month, so the window's size and position follow the clock changes described above.
| Month | Shared window | Length |
|---|---|---|
| 2026-10 | No shared hours | — |
| 2026-11 | 16:00–17:00 UTC | 1 hour |
| 2026-12 | 16:00–17:00 UTC | 1 hour |
| 2027-01 | 16:00–17:00 UTC | 1 hour |
| 2027-02 | 16:00–17:00 UTC | 1 hour |
| 2027-03 | 16:00–17:00 UTC | 1 hour |
| 2027-04 | No shared hours | — |
| 2027-05 | No shared hours | — |
| 2027-06 | No shared hours | — |
| 2027-07 | No shared hours | — |
| 2027-08 | No shared hours | — |
| 2027-09 | No shared hours | — |
Questions
- Is there any time Phoenix and London are both at work?
- Not on Monday, 28 September 2026. Phoenix works 16:00–00:00 UTC and London works 08:00–16:00 UTC, and those windows do not overlap. Widening one side's hours or choosing another date is what changes that.
- How far apart are Phoenix and London?
- On Monday, 28 September 2026, Phoenix is 8 hours behind London — UTC-07:00 against UTC+01:00. Phoenix does not change clocks at all. London changes clocks on Sunday, 25 October 2026, and the gap between them goes from 8 hours to 7 hours.
- Does the overlap between Phoenix and London change through the year?
- The shared window is 16:00–17:00 UTC in the 5 of the twelve months from Monday, 28 September 2026 that have one; 7 have no shared window at all.
Related city pairs
- Honolulu and Phoenix
- Honolulu and London
- San Francisco and Phoenix
- San Francisco and London
- Denver and Phoenix
- Denver and London
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.