🇳🇴 Porsgrunn, Norway
58
- Central European Summer Time
- UTC+2
- Golden hour
☀️ 08:03 · 🌙 18:11 · 10 h 8 min
Porsgrunn to Istanbul: time difference
Istanbul is 1 h ahead of Porsgrunn. 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.
Porsgrunn 16:43 4:43 PM Istanbul 17:43 5:43 PM You –:–
16:43 4:43 PM
Central European Summer Time · UTC+2
☀️ 08:03 · 🌙 18:11
17:43 5:43 PM
GMT+03:00 · UTC+3
☀️ 07:18 · 🌙 18:22
·
+1 h
Istanbul is 1 h ahead of Porsgrunn.
When you, Porsgrunn 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
🇳🇴 Porsgrunn
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 | 🇳🇴 Porsgrunn | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 16:43 | 17:43 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Central European Summer Time | GMT+03:00 |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Porsgrunn | — | +1 h |
| IANA zone | Europe/Oslo | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 08:03 | 07:18 |
| Sunset | 18:11 | 18:22 |
| Daylight | 10 h 8 min | 11 h 5 min |
| People on this clock | 37,144 | 15,701,602 |
Compare Porsgrunn with another city
More comparisons with Porsgrunn: the time zones next to it and the far side of the clock.
Big time differences
Porsgrunn and Istanbul: common questions
How many hours ahead of Porsgrunn is Istanbul?
The clocks in Istanbul are 1 hour ahead of those in Porsgrunn (UTC+3 and UTC+2).
If it is 9:00 AM in Porsgrunn, what time is it in Istanbul?
At 9:00 AM in Porsgrunn, clocks in Istanbul show 10:00 AM.
What time is it in Istanbul at the end of the working day in Porsgrunn?
The working day in Porsgrunn ends at 6:00 PM; in Istanbul it is 7:00 PM at that moment.
When is a good time to call Istanbul from Porsgrunn?
Between 9:00 AM and 5:00 PM in Porsgrunn – that is 10:00 AM to 6:00 PM in Istanbul – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Istanbul compared with Porsgrunn?
The new day starts in Istanbul earlier: at 11:00 PM in Porsgrunn it is already midnight there. Until 1:00 AM in Istanbul, Porsgrunn is still on the previous day.
Is the time difference between Porsgrunn and Istanbul the same all year?
No. Only Porsgrunn switches to summer time, so the gap changes twice a year. From October 25, 2026, Istanbul will be 2 hours ahead of Porsgrunn.
