Reunion to Istanbul: time difference
Istanbul is 1 h behind Reunion. 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.
Reunion 11:36 11:36 AM Istanbul 10:36 10:36 AM You –:–
11:36 11:36 AM
Réunion Time · UTC+4
☀️ 05:52 · 🌙 18:20
10:36 10:36 AM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
·
−1 h
Istanbul is 1 h behind Reunion.
When you, Reunion and Istanbul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇷🇪 Reunion
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
🇹🇷 Istanbul
23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇷🇪 Reunion | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 11:36 | 10:36 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Réunion Time | GMT+03:00 |
| UTC offset | UTC+4 | UTC+3 |
| Offset from Reunion | — | −1 h |
| IANA zone | Indian/Reunion | Europe/Istanbul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:52 | 07:10 |
| Sunset | 18:20 | 18:33 |
| Daylight | 12 h 27 min | 11 h 23 min |
| People on this clock | 881,348 | 15,701,602 |
Compare Reunion with another city
More comparisons with Reunion: the time zones next to it and the far side of the clock.
Big time differences
Reunion and Istanbul: common questions
What is the time difference between Reunion and Istanbul?
Istanbul is 1 hour behind: it uses UTC+3, while Reunion is on UTC+4.
If it is 9:00 AM in Reunion, what time is it in Istanbul?
At 9:00 AM in Reunion, clocks in Istanbul show 8:00 AM.
If it is 6:00 PM in Reunion, what time is it in Istanbul?
At 6:00 PM in Reunion, clocks in Istanbul show 5:00 PM.
When is a good time to call Istanbul from Reunion?
Between 10:00 AM and 6:00 PM in Reunion – that is 9:00 AM to 5:00 PM in Istanbul – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Istanbul?
Until 1:00 AM in Reunion it is still the previous day in Istanbul. The other way round, from 11:00 PM in Istanbul it is already the next day in Reunion.
Does the time gap between Reunion and Istanbul change during the year?
No, the clocks change neither in Reunion nor in Istanbul, so the gap is 1 hour all year round.
