The time difference between Hawaii and London is 10 hours. When it is 12:00 noon in Hawaii, it is 22:00 in London. Hawaii uses the Pacific/Honolulu time zone (UTC-10), while London uses Europe/London (UTC+0).
With a 10 hours gap, there is no standard business-hours overlap between Hawaii and London. One party will need to adjust their schedule. Early mornings in London or late evenings in Hawaii tend to be the most practical compromise.
Use this table to quickly convert any hour from Hawaii time to London time. Rows highlighted in green indicate overlapping business hours in both cities.
| Hawaii | London | |
|---|---|---|
| 00:00 | 10:00 | Night |
| 01:00 | 11:00 | Night |
| 02:00 | 12:00 | Night |
| 03:00 | 13:00 | Night |
| 04:00 | 14:00 | Night |
| 05:00 | 15:00 | Night |
| 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 | 00:00 (+1 day) | |
| 15:00 | 01:00 (+1 day) | |
| 16:00 | 02:00 (+1 day) | |
| 17:00 | 03:00 (+1 day) | |
| 18:00 | 04:00 (+1 day) | |
| 19:00 | 05:00 (+1 day) | |
| 20:00 | 06:00 (+1 day) | |
| 21:00 | 07:00 (+1 day) | |
| 22:00 | 08:00 (+1 day) | Night |
| 23:00 | 09:00 (+1 day) | Night |
Neither Hawaii nor London is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.
The time difference is 10 hours. London is 10 hours ahead of Hawaii.
It can. If either Hawaii or London observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).
There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.
Add 10 hours to Hawaii time to get London time. Use the hour-by-hour table above for a quick reference.