Time difference between Guam Government House and London
London is 9 hours behind Guam Government House.
Local time in both cities
Guam Government House · Guam
20:50
London · United Kingdom
11:50
London is 9 hours behind Guam Government House.
same day
Time zones
| Guam Government House | Pacific/Guam · UTC+10:00 |
|---|---|
| London | Europe/London · UTC+01:00 |
Guam Government House does not observe daylight saving and stays on UTC+10:00 all year.
London is currently on daylight saving time (UTC+01:00). Next change: 2026-10-25 01:00.
Hour-by-hour conversion
Calculated for 2026-09-21 local time in Guam Government House. The two places start and end daylight saving on different dates, so another day can give a different result.
| Guam Government House (source) | London (target) |
|---|---|
| 00:00 | 15:00 prev day |
| 01:00 | 16:00 prev day |
| 02:00 | 17:00 prev day |
| 03:00 | 18:00 prev day |
| 04:00 | 19:00 prev day |
| 05:00 | 20:00 prev day |
| 06:00 | 21:00 prev day |
| 07:00 | 22:00 prev day |
| 08:00 | 23:00 prev day |
| 09:00 | 00:00 |
| 10:00 | 01:00 |
| 11:00 | 02:00 |
| 12:00 | 03:00 |
| 13:00 | 04:00 |
| 14:00 | 05:00 |
| 15:00 | 06:00 |
| 16:00 | 07:00 |
| 17:00 | 08:00 |
| 18:00 | 09:00 |
| 19:00 | 10:00 |
| 20:00 | 11:00 |
| 21:00 | 12:00 |
| 22:00 | 13:00 |
| 23:00 | 14:00 |
Other common differences from Guam Government House
FAQ
- How many hours apart are Guam Government House and London right now?
- The answer at the top of the page is calculated for the current moment and states which side is ahead. The gap changes during the year, because the two places usually start and end daylight saving on different dates.
- Is this difference the same all year?
- Not necessarily. Guam Government House uses Pacific/Guam and London uses Europe/London; if either observes daylight saving, the gap shifts during the year. Use “Convert a specific date and time” below to calculate it for a given day.
- How do I read the conversion table?
- The left column lists each whole hour in Guam Government House; the right column is the local time in London at that same instant, with date rollovers marked. On the day clocks jump forward, some hours do not exist locally — the table says so instead of showing a plausible but wrong value.