Time difference between Hong Kong and London
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London is 8 hours behind Hong Kong at the start of the year; the gap changes 2 times during 2026 because the two cities change their clocks on different dates. Hong Kong uses Asia/Hong Kong (UTC+8 standard); London uses Europe/London (UTC+0 standard). The live line above shows the gap at this moment.
How this is calculated
The difference is the gap between the two cities’ UTC offsets at a given instant, taken from the IANA time zone database via the Intl API. It is recomputed live for the current moment, and for the year’s schedule below it is evaluated across every clock change in either city — which is why some pairs have several values a year and others one.
The overlap grid uses September 4, 2026 and 9-to-5 working hours; open the meeting planner for any other date or hours.
Last reviewed:
Time difference through 2026
| From | To | London is |
|---|---|---|
| January 1 | March 29 | 8 hours behind Hong Kong |
| March 29 | October 25 | 7 hours behind Hong Kong |
| October 25 | January 1 | 8 hours behind Hong Kong |
Clock changes in 2026
Hong Kong: no daylight saving time; UTC+8 all year.
London: Sunday, March 29 at 2:00 AM local, clocks go forward (UTC+0 → UTC+1); Sunday, October 25 at 1:00 AM local, clocks go back (UTC+1 → UTC+0).
Working-hours overlap (September 4, 2026)
| Hong Kong hour | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hong Kong | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| London | 17⁻ | 18⁻ | 19⁻ | 20⁻ | 21⁻ | 22⁻ | 23⁻ | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
green inside working hours ·grey early/late · plain = night · ⁺ next day · ⁻ previous day
Frequently asked questions
How many hours ahead is London of Hong Kong?
London is 8 hours behind Hong Kong at the start of the year; the gap changes 2 times during 2026 because the two cities change their clocks on different dates. The full schedule is in the table above.
What is the time difference between Hong Kong and London in standard time?
8 hours behind: Hong Kong is UTC+8 and London is UTC+0 outside daylight saving.
Does Hong Kong observe daylight saving time?
No. Hong Kong stays on UTC+8 all year.
Does London observe daylight saving time?
Yes. In 2026 London changes its clocks on Sunday, March 29 and Sunday, October 25.
What is the best time for a meeting between Hong Kong and London?
Working hours overlap when it is 16:00–17:00 in Hong Kong (on September 4, 2026; use the meeting planner for another date).