London and Bangkok working-hours overlap
On Monday, 28 September 2026, London is 6 hours behind Bangkok — UTC+01:00 against UTC+07:00. Their working hours overlap for 2 hours that day, between 08:00–10:00 UTC — 09:00–11:00 in London and 15:00–17:00 in Bangkok. London changes clocks on Sunday, 25 October 2026, and the gap between them goes from 6 hours to 7 hours. Bangkok does not change clocks at all.
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
Everyone is at work between 08:00–10:00 UTC — 2 hours.
| City | Local time | Offset |
|---|---|---|
| London | 09:00–11:00 | UTC+01:00 |
| Bangkok | 15:00–17:00 | UTC+07:00 |
Each city's working day
| City | Local hours | In UTC | Offset | Next clock change |
|---|---|---|---|---|
| London | 09:00–17:00 | 08:00–16:00 UTC | UTC+01:00 | UTC+01:00 → UTC+00:00, 25 Oct 2026 |
| Bangkok | 09:00–17:00 | 02:00–10:00 UTC | UTC+07:00 | No daylight saving |
How the shared window moves through the year
London changes clocks on Sunday, 25 October 2026, and Bangkok 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 | 08:00–10:00 UTC | 2 hours |
| 2026-11 | 09:00–10:00 UTC | 1 hour |
| 2026-12 | 09:00–10:00 UTC | 1 hour |
| 2027-01 | 09:00–10:00 UTC | 1 hour |
| 2027-02 | 09:00–10:00 UTC | 1 hour |
| 2027-03 | 09:00–10:00 UTC | 1 hour |
| 2027-04 | 08:00–10:00 UTC | 2 hours |
| 2027-05 | 08:00–10:00 UTC | 2 hours |
| 2027-06 | 08:00–10:00 UTC | 2 hours |
| 2027-07 | 08:00–10:00 UTC | 2 hours |
| 2027-08 | 08:00–10:00 UTC | 2 hours |
| 2027-09 | 08:00–10:00 UTC | 2 hours |
Questions
- What time can London and Bangkok meet?
- 08:00–10:00 UTC on Monday, 28 September 2026 — 2 hours. In London that is 09:00–11:00, and in Bangkok it is 15:00–17:00.
- How far apart are London and Bangkok?
- On Monday, 28 September 2026, London is 6 hours behind Bangkok — UTC+01:00 against UTC+07:00. London changes clocks on Sunday, 25 October 2026, and the gap between them goes from 6 hours to 7 hours. Bangkok does not change clocks at all.
- Does the overlap between London and Bangkok change through the year?
- London changes clocks on Sunday, 25 October 2026, and Bangkok never does, so the gap between them moves only when London's clocks do. Sampled once a month across the twelve months from Monday, 28 September 2026 the window is 08:00–10:00 UTC, 09:00–10:00 UTC.
Related city pairs
- Honolulu and London
- Honolulu and Bangkok
- San Francisco and London
- San Francisco and Bangkok
- Denver and London
- Denver and Bangkok
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.