4am in Hong Kong Time is 9pm in London on the previous day.

Frequently asked

Quick answers about converting between Hong Kong Time and London. Can't find what you need? Email [email protected].

What is the time difference between Hong Kong Time and London?

Hong Kong Time is 7 hours ahead of London right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.

When it's 4am in Hong Kong Time, what time is it in London?

4am in Hong Kong Time is 9pm in London on the previous day. It lands deep outside working hours in London — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.

What's the best time for a call between Hong Kong Time and London?

4pm–5pm in Hong Kong Time lines up with 9am–10am in London — both sides are inside a 9-to-5 working day.

Does this account for daylight saving time?

Yes. We track every clock change in both places, so the abbreviations you see — HKT and BST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.

Why is the date sometimes different on each side?

When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.