Hong Kong is currently 7 hours ahead of London. Convert time between Hong Kong and London, see the exact difference, and find the best hours for calls and meetings.
Hong Kong uses Hong Kong Standard Time. London uses British Summer Time. Hong Kong time is 7 hours ahead of London. So, when it is 12:00 AM in Hong Kong, it is 5:00 PM in London.
Common Hong Kong times and their London equivalents.
| Hong Kong Time | London Time |
|---|---|
| 12:00 AM Hong Kong | 5:00 PM London |
| 1:00 AM Hong Kong | 6:00 PM London |
| 2:00 AM Hong Kong | 7:00 PM London |
| 3:00 AM Hong Kong | 8:00 PM London |
| 4:00 AM Hong Kong | 9:00 PM London |
| 5:00 AM Hong Kong | 10:00 PM London |
| 6:00 AM Hong Kong | 11:00 PM London |
| 7:00 AM Hong Kong | 12:00 AM London |
| 8:00 AM Hong Kong | 1:00 AM London |
| 9:00 AM Hong Kong | 2:00 AM London |
| 10:00 AM Hong Kong | 3:00 AM London |
| 11:00 AM Hong Kong | 4:00 AM London |
| 12:00 PM Hong Kong | 5:00 AM London |
| 1:00 PM Hong Kong | 6:00 AM London |
| 2:00 PM Hong Kong | 7:00 AM London |
| 3:00 PM Hong Kong | 8:00 AM London |
| 4:00 PM Hong Kong | 9:00 AM London |
| 5:00 PM Hong Kong | 10:00 AM London |
| 6:00 PM Hong Kong | 11:00 AM London |
| 7:00 PM Hong Kong | 12:00 PM London |
| 8:00 PM Hong Kong | 1:00 PM London |
| 9:00 PM Hong Kong | 2:00 PM London |
| 10:00 PM Hong Kong | 3:00 PM London |
| 11:00 PM Hong Kong | 4:00 PM London |
Hong Kong uses Hong Kong Time (HKT, UTC+8) year-round with no Daylight Saving Time. The fixed offset aligns Hong Kong with Mainland China (CST) and Singapore (SGT). The Hang Seng exchange operates on HKT, making it a key financial timezone for the Asia-Pacific region.
London uses Greenwich Mean Time (GMT, UTC+0) in winter and British Summer Time (BST, UTC+1) in summer. The UK clocks go forward one hour on the last Sunday of March and back on the last Sunday of October. GMT takes its name from the Royal Observatory in Greenwich, east London — the historical origin of UTC-based world time.
Both Hong Kong and London may observe Daylight Saving Time, which means the offset between them can change twice a year. Here is what to expect each season.
| Period | Note | Hong Kong | London | Offset |
|---|---|---|---|---|
| Nov – Mar | Both on standard time | GMT+8 (UTC+8) | GMT (UTC+0) | 8 hours |
| Mar – late Mar | US clocks forward, some zones still on standard | GMT+8 (UTC+8) | GMT (UTC+0) | 8 hours |
| Late Mar – Oct current | Both on summer / daylight time | GMT+8 (UTC+8) | GMT+1 (UTC+1) | 7 hours |
| Late Oct – early Nov | Clocks transitioning — check exact date | GMT+8 (UTC+8) | GMT (UTC+0) | 8 hours |
The transition window typically lasts 1–2 weeks in spring and autumn. If you have a recurring weekly meeting near a clock change, verify the exact date to avoid a missed call.
Hong Kong is currently 7 hours ahead of London. Hong Kong uses Hong Kong Standard Time (UTC+8) and London uses British Summer Time (UTC+1).
The best overlap window is 4:00 pm–6:00 pm Hong Kong time, which corresponds to 9:00 am–11:00 am London time. Both cities are within standard business hours (9 am–6 pm) during this window.
When it is 9:00 AM in Hong Kong, it is 2:00 am in London. Hong Kong is 7 hours ahead of London.
When it is 5:00 PM in London, it is 12:00 am in Hong Kong (next day).
London observes Daylight Saving Time but Hong Kong does not. This means the offset between the two cities changes by one hour when London transitions its clocks. Always verify the current offset when scheduling meetings near DST transition dates.