Istanbul to Ratnapura: time difference
Ratnapura is 2 h 30 min ahead of Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
+2 h 30 min
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 14:48 2:48 PM Ratnapura 17:18 5:18 PM You –:–
14:48 2:48 PM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
17:18 5:18 PM
India Standard Time · UTC+5:30
☀️ 05:56 · 🌙 17:56
·
+2 h 30 min
Ratnapura is 2 h 30 min ahead of Istanbul.
When you, Istanbul 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
🇹🇷 Istanbul
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
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇷 Istanbul | 🇱🇰 Ratnapura |
|---|---|---|
| Local time | 14:48 | 17:18 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | GMT+03:00 | India Standard Time |
| UTC offset | UTC+3 | UTC+5:30 |
| Offset from Istanbul | — | +2 h 30 min |
| IANA zone | Europe/Istanbul | Asia/Colombo |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:10 | 05:56 |
| Sunset | 18:33 | 17:56 |
| Daylight | 11 h 23 min | 12 h 1 min |
| People on this clock | 15,701,602 | 52,100 |
Compare Istanbul with another city
More comparisons with Istanbul: the time zones next to it and the far side of the clock.
Big time differences
Istanbul and Ratnapura: common questions
What is the time difference between Istanbul and Ratnapura?
Ratnapura is 2 hours and 30 minutes ahead: it uses UTC+5:30, while Istanbul is on UTC+3.
What time is it in Ratnapura at the start of the working day in Istanbul?
The working day in Istanbul starts at 9:00 AM; in Ratnapura it is 11:30 AM at that moment.
What time is it in Ratnapura when it is 6:00 PM in Istanbul?
When it is 6:00 PM in Istanbul, it is 8:30 PM in Ratnapura.
When is a good time to call Ratnapura from Istanbul?
Between 9:00 AM and 3:30 PM in Istanbul – that is 11:30 AM to 6:00 PM in Ratnapura – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Ratnapura?
From 9:30 PM in Istanbul it is already the next day in Ratnapura. The other way round, until 2:30 AM in Ratnapura it is still the previous day in Istanbul.
Does the time gap between Istanbul and Ratnapura change during the year?
No, the clocks change neither in Istanbul nor in Ratnapura, so the gap is 2 hours and 30 minutes all year round.
