Colombo to London: time difference
London is 4 h 30 min behind Colombo. Live clocks for both, the working hours they share, and how each one sits against your own time.
−4 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Colombo 09:10 9:10 AM London 04:40 4:40 AM You –:–
09:10 9:10 AM
India Standard Time · UTC+5:30
☀️ 05:58 · 🌙 17:59
04:40 4:40 AM
British Summer Time · UTC+1
☀️ 07:16 · 🌙 18:20
·
−4 h 30 min
London is 4 h 30 min behind Colombo.
When you, Colombo and London are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇱🇰 Colombo
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇬🇧 London
19:30 7:30 PM 20:30 8:30 PM 21:30 9:30 PM 22:30 10:30 PM 23:30 11:30 PM 0:30 12:30 AM 1:30 1:30 AM 2:30 2:30 AM 3:30 3:30 AM 4:30 4:30 AM 5:30 5:30 AM 6:30 6:30 AM 7:30 7:30 AM 8:30 8:30 AM 9:30 9:30 AM 10:30 10:30 AM 11:30 11:30 AM 12:30 12:30 PM 13:30 1:30 PM 14:30 2:30 PM 15:30 3:30 PM 16:30 4:30 PM 17:30 5:30 PM 18:30 6:30 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇱🇰 Colombo | 🇬🇧 London |
|---|---|---|
| Local time | 09:10 | 04:40 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | India Standard Time | British Summer Time |
| UTC offset | UTC+5:30 | UTC+1 |
| Offset from Colombo | — | −4 h 30 min |
| IANA zone | Asia/Colombo | Europe/London |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 05:58 | 07:16 |
| Sunset | 17:59 | 18:20 |
| Daylight | 12 h | 11 h 4 min |
| People on this clock | 753,000 | 8,908,083 |
Compare Colombo with another city
More comparisons with Colombo: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Colombo and London: common questions
How many hours behind Colombo is London?
The clocks in London are 4 hours and 30 minutes behind those in Colombo (UTC+1 and UTC+5:30).
What time is it in London at the start of the working day in Colombo?
The working day in Colombo starts at 9:00 AM; in London it is 4:30 AM at that moment.
What time is it in London when it is 6:00 PM in Colombo?
When it is 6:00 PM in Colombo, it is 1:30 PM in London.
Is there a time when both Colombo and London are at work?
Yes: from 1:30 PM to 6:00 PM in Colombo (9:00 AM to 1:30 PM in London), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in London?
Until 4:30 AM in Colombo it is still the previous day in London. The other way round, from 7:30 PM in London it is already the next day in Colombo.
Is the time difference between Colombo and London the same all year?
No. Only London switches to summer time, so the gap changes twice a year. From October 25, 2026, London will be 5 hours and 30 minutes behind Colombo.
