Istanbul to Riehen: time difference
Riehen is 1 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇨🇭 Riehen, Switzerland
22
- Central European Summer Time
- UTC+2
- Daytime
☀️ 07:53 · 🌙 18:38 · 10 h 45 min
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 15:15 3:15 PM Riehen 14:15 2:15 PM You –:–
15:15 3:15 PM
GMT+03:00 · UTC+3
☀️ 07:19 · 🌙 18:21
14:15 2:15 PM
Central European Summer Time · UTC+2
☀️ 07:53 · 🌙 18:38
·
−1 h
Riehen is 1 h behind Istanbul.
When you, Istanbul and Riehen 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
🇨🇭 Riehen
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 | 🇹🇷 Istanbul | 🇨🇭 Riehen |
|---|---|---|
| Local time | 15:15 | 14:15 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | GMT+03:00 | Central European Summer Time |
| UTC offset | UTC+3 | UTC+2 |
| Offset from Istanbul | — | −1 h |
| IANA zone | Europe/Istanbul | Europe/Zurich |
| Daylight saving | Not observed | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:19 | 07:53 |
| Sunset | 18:21 | 18:38 |
| Daylight | 11 h 2 min | 10 h 45 min |
| People on this clock | 15,701,602 | 20,970 |
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 Riehen: common questions
What is the time difference between Istanbul and Riehen?
Riehen is 1 hour behind: it uses UTC+2, while Istanbul is on UTC+3.
What time is it in Riehen when it is 9:00 AM in Istanbul?
When it is 9:00 AM in Istanbul, it is 8:00 AM in Riehen.
What time is it in Riehen when it is 6:00 PM in Istanbul?
When it is 6:00 PM in Istanbul, it is 5:00 PM in Riehen.
When is a good time to call Riehen from Istanbul?
Between 10:00 AM and 6:00 PM in Istanbul – that is 9:00 AM to 5:00 PM in Riehen – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Riehen?
Until 1:00 AM in Istanbul it is still the previous day in Riehen. The other way round, from 11:00 PM in Riehen it is already the next day in Istanbul.
Does the time difference between Istanbul and Riehen change?
Yes. The clocks change only in Riehen. From October 25, 2026, Riehen will be 2 hours behind Istanbul.
