London to Ratnapura: time difference
Ratnapura is 4 h 30 min ahead of London. 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.
London 12:55 12:55 PM Ratnapura 17:25 5:25 PM You –:–
12:55 12:55 PM
British Summer Time · UTC+1
☀️ 07:16 · 🌙 18:20
17:25 5:25 PM
India Standard Time · UTC+5:30
☀️ 05:56 · 🌙 17:56
·
+4 h 30 min
Ratnapura is 4 h 30 min ahead of London.
When you, London and Ratnapura are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇬🇧 London
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
🇱🇰 Ratnapura
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇧 London | 🇱🇰 Ratnapura |
|---|---|---|
| Local time | 12:55 | 17:25 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | British Summer Time | India Standard Time |
| UTC offset | UTC+1 | UTC+5:30 |
| Offset from London | — | +4 h 30 min |
| IANA zone | Europe/London | Asia/Colombo |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:16 | 05:56 |
| Sunset | 18:20 | 17:56 |
| Daylight | 11 h 4 min | 12 h 1 min |
| People on this clock | 8,908,083 | 52,100 |
Compare London with another city
More comparisons with London: the time zones next to it and the far side of the clock.
Big time differences
London and Ratnapura: common questions
How many hours ahead of London is Ratnapura?
The clocks in Ratnapura are 4 hours and 30 minutes ahead of those in London (UTC+5:30 and UTC+1).
If it is 9:00 AM in London, what time is it in Ratnapura?
At 9:00 AM in London, clocks in Ratnapura show 1:30 PM.
What time is it in Ratnapura when it is 6:00 PM in London?
When it is 6:00 PM in London, it is 10:30 PM in Ratnapura.
Is there a time when both London and Ratnapura are at work?
Yes: from 9:00 AM to 1:30 PM in London (1:30 PM to 6:00 PM in Ratnapura), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Ratnapura?
From 7:30 PM in London it is already the next day in Ratnapura. The other way round, until 4:30 AM in Ratnapura it is still the previous day in London.
Is the time difference between London and Ratnapura the same all year?
No. Only London switches to summer time, so the gap changes twice a year. From October 25, 2026, Ratnapura will be 5 hours and 30 minutes ahead of London.
