🇳🇱 Geleen, Netherlands
10
- Central European Summer Time
- UTC+2
- Daytime
☀️ 08:07 · 🌙 18:38 · 10 h 31 min
Geleen to Istanbul: time difference
Istanbul is 1 h ahead of Geleen. 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.
Geleen 11:25 11:25 AM Istanbul 12:25 12:25 PM You –:–
11:25 11:25 AM
Central European Summer Time · UTC+2
☀️ 08:07 · 🌙 18:38
12:25 12:25 PM
GMT+03:00 · UTC+3
☀️ 07:20 · 🌙 18:19
·
+1 h
Istanbul is 1 h ahead of Geleen.
When you, Geleen 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
🇳🇱 Geleen
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 | 🇳🇱 Geleen | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 11:25 | 12:25 |
| 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 Geleen | — | +1 h |
| IANA zone | Europe/Amsterdam | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 08:07 | 07:20 |
| Sunset | 18:38 | 18:19 |
| Daylight | 10 h 31 min | 10 h 59 min |
| People on this clock | 31,970 | 15,701,602 |
Compare Geleen with another city
More comparisons with Geleen: the time zones next to it and the far side of the clock.
Big time differences
Geleen and Istanbul: common questions
How many hours ahead of Geleen is Istanbul?
The clocks in Istanbul are 1 hour ahead of those in Geleen (UTC+3 and UTC+2).
If it is 9:00 AM in Geleen, what time is it in Istanbul?
At 9:00 AM in Geleen, clocks in Istanbul show 10:00 AM.
What time is it in Istanbul at the end of the working day in Geleen?
The working day in Geleen ends at 6:00 PM; in Istanbul it is 7:00 PM at that moment.
Is there a time when both Geleen and Istanbul are at work?
Yes: from 9:00 AM to 5:00 PM in Geleen (10:00 AM to 6:00 PM in Istanbul), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Istanbul?
From 11:00 PM in Geleen it is already the next day in Istanbul. The other way round, until 1:00 AM in Istanbul it is still the previous day in Geleen.
Is the time difference between Geleen and Istanbul the same all year?
No. Only Geleen switches to summer time, so the gap changes twice a year. From October 25, 2026, Istanbul will be 2 hours ahead of Geleen.
