🇨🇭 Olten, Switzerland
53
- Central European Summer Time
- UTC+2
- Daytime
☀️ 07:54 · 🌙 18:34 · 10 h 39 min
Olten to Istanbul: time difference
Istanbul is 1 h ahead of Olten. 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.
Olten 15:17 3:17 PM Istanbul 16:17 4:17 PM You –:–
15:17 3:17 PM
Central European Summer Time · UTC+2
☀️ 07:54 · 🌙 18:34
16:17 4:17 PM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
·
+1 h
Istanbul is 1 h ahead of Olten.
When you, Olten 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
🇨🇭 Olten
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
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 | 🇨🇭 Olten | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 15:17 | 16:17 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central European Summer Time | GMT+03:00 |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Olten | — | +1 h |
| IANA zone | Europe/Zurich | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 07:54 | 07:21 |
| Sunset | 18:34 | 18:18 |
| Daylight | 10 h 39 min | 10 h 57 min |
| People on this clock | 17,280 | 15,701,602 |
Compare Olten with another city
More comparisons with Olten: the time zones next to it and the far side of the clock.
Big time differences
Olten and Istanbul: common questions
How many hours ahead of Olten is Istanbul?
The clocks in Istanbul are 1 hour ahead of those in Olten (UTC+3 and UTC+2).
If it is 9:00 AM in Olten, what time is it in Istanbul?
At 9:00 AM in Olten, clocks in Istanbul show 10:00 AM.
What time is it in Istanbul at the end of the working day in Olten?
The working day in Olten ends at 6:00 PM; in Istanbul it is 7:00 PM at that moment.
When do working hours in Olten and in Istanbul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Olten, which is 10:00 AM to 6:00 PM in Istanbul.
From what time in Olten is it tomorrow in Istanbul?
Once it is 11:00 PM in Olten, the date in Istanbul has already changed. Until 1:00 AM in Istanbul, it is still the previous day in Olten.
Does the time difference between Olten and Istanbul change?
Yes. The clocks change only in Olten. From October 25, 2026, Istanbul will be 2 hours ahead of Olten.
