🇨🇭 Altstätten, Switzerland
31
- Central European Summer Time
- UTC+2
- Night
☀️ 07:46 · 🌙 18:29 · 10 h 43 min
Altstätten to Istanbul: time difference
Istanbul is 1 h ahead of Altstätten. 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.
Altstätten 23:03 11:03 PM Istanbul 00:03 12:03 AM You –:–
23:03 11:03 PM
Central European Summer Time · UTC+2
☀️ 07:46 · 🌙 18:29
00:03 12:03 AM
GMT+03:00 · UTC+3
☀️ 07:20 · 🌙 18:19
·
+1 h
Istanbul is 1 h ahead of Altstätten.
When you, Altstätten 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
🇨🇭 Altstätten
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 | 🇨🇭 Altstätten | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 23:03 | 00:03 |
| Local date | Monday, October 19, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central European Summer Time | GMT+03:00 |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Altstätten | — | +1 h |
| IANA zone | Europe/Zurich | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 07:46 | 07:20 |
| Sunset | 18:29 | 18:19 |
| Daylight | 10 h 43 min | 10 h 59 min |
| People on this clock | 11,145 | 15,701,602 |
Compare Altstätten with another city
More comparisons with Altstätten: the time zones next to it and the far side of the clock.
Big time differences
Altstätten and Istanbul: common questions
How far ahead of Altstätten is Istanbul?
Istanbul is 1 hour ahead of Altstätten: UTC+3 against UTC+2.
If it is 9:00 AM in Altstätten, what time is it in Istanbul?
At 9:00 AM in Altstätten, clocks in Istanbul show 10:00 AM.
What time is it in Istanbul at the end of the working day in Altstätten?
The working day in Altstätten ends at 6:00 PM; in Istanbul it is 7:00 PM at that moment.
When do working hours in Altstätten and in Istanbul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Altstätten, which is 10:00 AM to 6:00 PM in Istanbul.
From what time in Altstätten is it tomorrow in Istanbul?
Once it is 11:00 PM in Altstätten, the date in Istanbul has already changed. Until 1:00 AM in Istanbul, it is still the previous day in Altstätten.
Is the time difference between Altstätten and Istanbul the same all year?
No. Only Altstätten switches to summer time, so the gap changes twice a year. From October 25, 2026, Istanbul will be 2 hours ahead of Altstätten.
