Sion to Istanbul: time difference
Istanbul is 1 h ahead of Sion. 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.
Sion 09:47 9:47 AM Istanbul 10:47 10:47 AM You –:–
09:47 9:47 AM
Central European Summer Time · UTC+2
☀️ 07:53 · 🌙 18:39
10:47 10:47 AM
GMT+03:00 · UTC+3
☀️ 07:20 · 🌙 18:19
·
+1 h
Istanbul is 1 h ahead of Sion.
When you, Sion 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
🇨🇭 Sion
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 | 🇨🇭 Sion | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 09:47 | 10:47 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Central European Summer Time | GMT+03:00 |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Sion | — | +1 h |
| IANA zone | Europe/Zurich | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 07:53 | 07:20 |
| Sunset | 18:39 | 18:19 |
| Daylight | 10 h 46 min | 10 h 59 min |
| People on this clock | 34,599 | 15,701,602 |
Compare Sion with another city
More comparisons with Sion: the time zones next to it and the far side of the clock.
Big time differences
Sion and Istanbul: common questions
How far ahead of Sion is Istanbul?
Istanbul is 1 hour ahead of Sion: UTC+3 against UTC+2.
What time is it in Istanbul when it is 9:00 AM in Sion?
When it is 9:00 AM in Sion, it is 10:00 AM in Istanbul.
What time is it in Istanbul at the end of the working day in Sion?
The working day in Sion ends at 6:00 PM; in Istanbul it is 7:00 PM at that moment.
When do working hours in Sion and in Istanbul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Sion, which is 10:00 AM to 6:00 PM in Istanbul.
When does the date change in Istanbul compared with Sion?
The new day starts in Istanbul earlier: at 11:00 PM in Sion it is already midnight there. Until 1:00 AM in Istanbul, Sion is still on the previous day.
Is the time difference between Sion and Istanbul the same all year?
No. Only Sion switches to summer time, so the gap changes twice a year. From October 25, 2026, Istanbul will be 2 hours ahead of Sion.
