Bonn to Istanbul: time difference
Istanbul is 1 h ahead of Bonn. 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.
Bonn 03:35 3:35 AM Istanbul 04:35 4:35 AM You –:–
03:35 3:35 AM
Central European Summer Time · UTC+2
☀️ 07:46 · 🌙 18:52
04:35 4:35 AM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
·
+1 h
Istanbul is 1 h ahead of Bonn.
When you, Bonn 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
🇩🇪 Bonn
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 | 🇩🇪 Bonn | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 03:35 | 04:35 |
| 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 Bonn | — | +1 h |
| IANA zone | Europe/Berlin | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 07:46 | 07:10 |
| Sunset | 18:52 | 18:33 |
| Daylight | 11 h 6 min | 11 h 23 min |
| People on this clock | 335,913 | 15,701,602 |
Compare Bonn with another city
More comparisons with Bonn: the time zones next to it and the far side of the clock.
Big time differences
Bonn and Istanbul: common questions
What is the time difference between Bonn and Istanbul?
Istanbul is 1 hour ahead: it uses UTC+3, while Bonn is on UTC+2.
If it is 9:00 AM in Bonn, what time is it in Istanbul?
At 9:00 AM in Bonn, clocks in Istanbul show 10:00 AM.
If it is 6:00 PM in Bonn, what time is it in Istanbul?
At 6:00 PM in Bonn, clocks in Istanbul show 7:00 PM.
Is there a time when both Bonn and Istanbul are at work?
Yes: from 9:00 AM to 5:00 PM in Bonn (10:00 AM to 6:00 PM in Istanbul), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Istanbul compared with Bonn?
The new day starts in Istanbul earlier: at 11:00 PM in Bonn it is already midnight there. Until 1:00 AM in Istanbul, Bonn is still on the previous day.
Is the time difference between Bonn and Istanbul the same all year?
No. Only Bonn switches to summer time, so the gap changes twice a year. From October 25, 2026, Istanbul will be 2 hours ahead of Bonn.
