Istanbul to Vienna: time difference
Vienna is 1 h behind Istanbul. Live clocks for both, the working hours they share, and how each one sits against your own time.
−1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Istanbul 06:21 6:21 AM Vienna 05:21 5:21 AM You –:–
06:21 6:21 AM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
05:21 5:21 AM
Central European Summer Time · UTC+2
☀️ 07:07 · 🌙 18:18
·
−1 h
Vienna is 1 h behind Istanbul.
When you, Istanbul and Vienna 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
🇦🇹 Vienna
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 | 🇦🇹 Vienna |
|---|---|---|
| Local time | 06:21 | 05:21 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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/Vienna |
| Daylight saving | Not observed | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:10 | 07:07 |
| Sunset | 18:33 | 18:18 |
| Daylight | 11 h 23 min | 11 h 11 min |
| People on this clock | 15,701,602 | 1,920,949 |
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 Vienna: common questions
How many hours behind Istanbul is Vienna?
The clocks in Vienna are 1 hour behind those in Istanbul (UTC+2 and UTC+3).
What time is it in Vienna at the start of the working day in Istanbul?
The working day in Istanbul starts at 9:00 AM; in Vienna it is 8:00 AM at that moment.
If it is 6:00 PM in Istanbul, what time is it in Vienna?
At 6:00 PM in Istanbul, clocks in Vienna show 5:00 PM.
When do working hours in Istanbul and in Vienna overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Istanbul, which is 9:00 AM to 5:00 PM in Vienna.
When is it still the previous day in Vienna?
Until 1:00 AM in Istanbul it is still the previous day in Vienna. The other way round, from 11:00 PM in Vienna it is already the next day in Istanbul.
Is the time difference between Istanbul and Vienna the same all year?
No. Only Vienna switches to summer time, so the gap changes twice a year. From October 25, 2026, Vienna will be 2 hours behind Istanbul.
