Guernsey to Istanbul: time difference
Istanbul is 2 h ahead of Guernsey. 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.
Guernsey 10:40 10:40 AM Istanbul 12:40 12:40 PM You –:–
10:40 10:40 AM
GMT+01:00 · UTC+1
☀️ 07:24 · 🌙 18:32
12:40 12:40 PM
GMT+03:00 · UTC+3
☀️ 07:10 · 🌙 18:33
·
+2 h
Istanbul is 2 h ahead of Guernsey.
When you, Guernsey 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
🇬🇬 Guernsey
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
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 1 1 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇬 Guernsey | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 10:40 | 12:40 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | GMT+01:00 | GMT+03:00 |
| UTC offset | UTC+1 | UTC+3 |
| Offset from Guernsey | — | +2 h |
| IANA zone | Europe/Guernsey | Europe/Istanbul |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:24 | 07:10 |
| Sunset | 18:32 | 18:33 |
| Daylight | 11 h 8 min | 11 h 23 min |
| People on this clock | 63,600 | 15,701,602 |
Compare Guernsey with another city
More comparisons with Guernsey: the time zones next to it and the far side of the clock.
Big time differences
Guernsey and Istanbul: common questions
How many hours ahead of Guernsey is Istanbul?
The clocks in Istanbul are 2 hours ahead of those in Guernsey (UTC+3 and UTC+1).
What time is it in Istanbul when it is 9:00 AM in Guernsey?
When it is 9:00 AM in Guernsey, it is 11:00 AM in Istanbul.
What time is it in Istanbul when it is 6:00 PM in Guernsey?
When it is 6:00 PM in Guernsey, it is 8:00 PM in Istanbul.
Is there a time when both Guernsey and Istanbul are at work?
Yes: from 9:00 AM to 4:00 PM in Guernsey (11:00 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 Guernsey?
The new day starts in Istanbul earlier: at 10:00 PM in Guernsey it is already midnight there. Until 2:00 AM in Istanbul, Guernsey is still on the previous day.
Is the time difference between Guernsey and Istanbul the same all year?
No. Only Guernsey switches to summer time, so the gap changes twice a year. From October 25, 2026, Istanbul will be 3 hours ahead of Guernsey.
