Vienna to Istanbul: time difference
Istanbul is 1 h ahead of Vienna. 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.
Vienna 04:31 4:31 AM Istanbul 05:31 5:31 AM You –:–
04:31 4:31 AM
Central European Summer Time · UTC+2
☀️ 07:07 · 🌙 18:18
05:31 5:31 AM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
·
+1 h
Istanbul is 1 h ahead of Vienna.
When you, Vienna 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
🇦🇹 Vienna
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 | 🇦🇹 Vienna | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 04:31 | 05:31 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Central European Summer Time | GMT+03:00 |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Vienna | — | +1 h |
| IANA zone | Europe/Vienna | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 07:07 | 07:10 |
| Sunset | 18:18 | 18:33 |
| Daylight | 11 h 11 min | 11 h 23 min |
| People on this clock | 1,920,949 | 15,701,602 |
Compare Vienna with another city
More comparisons with Vienna: the time zones next to it and the far side of the clock.
Big time differences
Vienna and Istanbul: common questions
What is the time difference between Vienna and Istanbul?
Istanbul is 1 hour ahead: it uses UTC+3, while Vienna is on UTC+2.
What time is it in Istanbul when it is 9:00 AM in Vienna?
When it is 9:00 AM in Vienna, it is 10:00 AM in Istanbul.
If it is 6:00 PM in Vienna, what time is it in Istanbul?
At 6:00 PM in Vienna, clocks in Istanbul show 7:00 PM.
When is a good time to call Istanbul from Vienna?
Between 9:00 AM and 5:00 PM in Vienna – that is 10:00 AM to 6:00 PM in Istanbul – both places are within working hours (9:00 AM–6:00 PM).
From what time in Vienna is it tomorrow in Istanbul?
Once it is 11:00 PM in Vienna, the date in Istanbul has already changed. Until 1:00 AM in Istanbul, it is still the previous day in Vienna.
Does the time difference between Vienna and Istanbul change?
Yes. The clocks change only in Vienna. From October 25, 2026, Istanbul will be 2 hours ahead of Vienna.
