🇬🇧 Greenwich, United Kingdom
10
- British Summer Time
- UTC+1
- Golden hour
☀️ 07:33 · 🌙 17:58 · 10 h 26 min
Greenwich to Istanbul: time difference
Istanbul is 2 h ahead of Greenwich. 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.
Greenwich 16:31 4:31 PM Istanbul 18:31 6:31 PM You –:–
16:31 4:31 PM
British Summer Time · UTC+1
☀️ 07:33 · 🌙 17:58
18:31 6:31 PM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
·
+2 h
Istanbul is 2 h ahead of Greenwich.
When you, Greenwich 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
🇬🇧 Greenwich
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 | 🇬🇧 Greenwich | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 16:31 | 18:31 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | British Summer Time | GMT+03:00 |
| UTC offset | UTC+1 | UTC+3 |
| Offset from Greenwich | — | +2 h |
| IANA zone | Europe/London | Europe/Istanbul |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:33 | 07:21 |
| Sunset | 17:58 | 18:18 |
| Daylight | 10 h 26 min | 10 h 57 min |
| People on this clock | 285,000 | 15,701,602 |
Compare Greenwich with another city
More comparisons with Greenwich: the time zones next to it and the far side of the clock.
Big time differences
Greenwich and Istanbul: common questions
How far ahead of Greenwich is Istanbul?
Istanbul is 2 hours ahead of Greenwich: UTC+3 against UTC+1.
What time is it in Istanbul when it is 9:00 AM in Greenwich?
When it is 9:00 AM in Greenwich, it is 11:00 AM in Istanbul.
What time is it in Istanbul at the end of the working day in Greenwich?
The working day in Greenwich ends at 6:00 PM; in Istanbul it is 8:00 PM at that moment.
When do working hours in Greenwich and in Istanbul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 4:00 PM in Greenwich, which is 11:00 AM to 6:00 PM in Istanbul.
From what time in Greenwich is it tomorrow in Istanbul?
Once it is 10:00 PM in Greenwich, the date in Istanbul has already changed. Until 2:00 AM in Istanbul, it is still the previous day in Greenwich.
Does the time difference between Greenwich and Istanbul change?
Yes. The clocks change only in Greenwich. From October 25, 2026, Istanbul will be 3 hours ahead of Greenwich.
