Istanbul to Cilaos: time difference
Cilaos is 1 h ahead of Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 11:37 11:37 AM Cilaos 12:37 12:37 PM You –:–
11:37 11:37 AM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
12:37 12:37 PM
Réunion Time · UTC+4
☀️ 05:52 · 🌙 18:20
·
+1 h
Cilaos is 1 h ahead of Istanbul.
When you, Istanbul and Cilaos 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
🇷🇪 Cilaos
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇷 Istanbul | 🇷🇪 Cilaos |
|---|---|---|
| Local time | 11:37 | 12:37 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | GMT+03:00 | Réunion Time |
| UTC offset | UTC+3 | UTC+4 |
| Offset from Istanbul | — | +1 h |
| IANA zone | Europe/Istanbul | Indian/Reunion |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:10 | 05:52 |
| Sunset | 18:33 | 18:20 |
| Daylight | 11 h 23 min | 12 h 27 min |
| People on this clock | 15,701,602 | 5,500 |
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 Cilaos: common questions
How many hours ahead of Istanbul is Cilaos?
The clocks in Cilaos are 1 hour ahead of those in Istanbul (UTC+4 and UTC+3).
What time is it in Cilaos when it is 9:00 AM in Istanbul?
When it is 9:00 AM in Istanbul, it is 10:00 AM in Cilaos.
What time is it in Cilaos when it is 6:00 PM in Istanbul?
When it is 6:00 PM in Istanbul, it is 7:00 PM in Cilaos.
When do working hours in Istanbul and in Cilaos overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Istanbul, which is 10:00 AM to 6:00 PM in Cilaos.
From what time in Istanbul is it tomorrow in Cilaos?
Once it is 11:00 PM in Istanbul, the date in Cilaos has already changed. Until 1:00 AM in Cilaos, it is still the previous day in Istanbul.
Is the time difference between Istanbul and Cilaos the same all year?
Yes. Neither Istanbul nor Cilaos switches to summer time, so the gap is always 1 hour.
