London and Singapore working-hours overlap
On Monday, 28 September 2026, London is 7 hours behind Singapore — UTC+01:00 against UTC+08:00. Their working hours overlap for 1 hour that day, between 08:00–09:00 UTC — 09:00–10:00 in London and 16:00–17:00 in Singapore. London changes clocks on Sunday, 25 October 2026, and the gap between them goes from 7 hours to 8 hours. Singapore 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 08:00–09:00 UTC — 1 hour.
| City | Local time | Offset |
|---|---|---|
| London | 09:00–10:00 | UTC+01:00 |
| Singapore | 16:00–17:00 | UTC+08:00 |
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 |
| Singapore | 09:00–17:00 | 01:00–09:00 UTC | UTC+08:00 | No daylight saving |
How the shared window moves through the year
London changes clocks on Sunday, 25 October 2026, and Singapore 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 | 08:00–09:00 UTC | 1 hour |
| 2026-11 | No shared hours | — |
| 2026-12 | No shared hours | — |
| 2027-01 | No shared hours | — |
| 2027-02 | No shared hours | — |
| 2027-03 | No shared hours | — |
| 2027-04 | 08:00–09:00 UTC | 1 hour |
| 2027-05 | 08:00–09:00 UTC | 1 hour |
| 2027-06 | 08:00–09:00 UTC | 1 hour |
| 2027-07 | 08:00–09:00 UTC | 1 hour |
| 2027-08 | 08:00–09:00 UTC | 1 hour |
| 2027-09 | 08:00–09:00 UTC | 1 hour |
Questions
- What time can London and Singapore meet?
- 08:00–09:00 UTC on Monday, 28 September 2026 — 1 hour. In London that is 09:00–10:00, and in Singapore it is 16:00–17:00.
- How far apart are London and Singapore?
- On Monday, 28 September 2026, London is 7 hours behind Singapore — UTC+01:00 against UTC+08:00. London changes clocks on Sunday, 25 October 2026, and the gap between them goes from 7 hours to 8 hours. Singapore does not change clocks at all.
- Does the overlap between London and Singapore change through the year?
- The shared window is 08:00–09:00 UTC in the 7 of the twelve months from Monday, 28 September 2026 that have one; 5 have no shared window at all.
Related city pairs
- Honolulu and London
- Honolulu and Singapore
- San Francisco and London
- San Francisco and Singapore
- Denver and London
- Denver and Singapore
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.