Portmarnock to Istanbul: time difference
Istanbul is 2 h ahead of Portmarnock. 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.
Portmarnock 13:32 1:32 PM Istanbul 15:32 3:32 PM You –:–
13:32 1:32 PM
Irish Standard Time · UTC+1
☀️ 07:55 · 🌙 18:26
15:32 3:32 PM
GMT+03:00 · UTC+3
☀️ 07:18 · 🌙 18:22
·
+2 h
Istanbul is 2 h ahead of Portmarnock.
When you, Portmarnock 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
🇮🇪 Portmarnock
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 | 🇮🇪 Portmarnock | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 13:32 | 15:32 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Irish Standard Time | GMT+03:00 |
| UTC offset | UTC+1 | UTC+3 |
| Offset from Portmarnock | — | +2 h |
| IANA zone | Europe/Dublin | Europe/Istanbul |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | Not observed |
| Sunrise | 07:55 | 07:18 |
| Sunset | 18:26 | 18:22 |
| Daylight | 10 h 31 min | 11 h 5 min |
| People on this clock | 9,285 | 15,701,602 |
Compare Portmarnock with another city
More comparisons with Portmarnock: the time zones next to it and the far side of the clock.
Big time differences
Portmarnock and Istanbul: common questions
How far ahead of Portmarnock is Istanbul?
Istanbul is 2 hours ahead of Portmarnock: UTC+3 against UTC+1.
What time is it in Istanbul when it is 9:00 AM in Portmarnock?
When it is 9:00 AM in Portmarnock, it is 11:00 AM in Istanbul.
What time is it in Istanbul at the end of the working day in Portmarnock?
The working day in Portmarnock ends at 6:00 PM; in Istanbul it is 8:00 PM at that moment.
When do working hours in Portmarnock and in Istanbul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 4:00 PM in Portmarnock, which is 11:00 AM to 6:00 PM in Istanbul.
When does the date change in Istanbul compared with Portmarnock?
The new day starts in Istanbul earlier: at 10:00 PM in Portmarnock it is already midnight there. Until 2:00 AM in Istanbul, Portmarnock is still on the previous day.
Is the time difference between Portmarnock and Istanbul the same all year?
No. Only Portmarnock switches to summer time, so the gap changes twice a year. From October 25, 2026, Istanbul will be 3 hours ahead of Portmarnock.
