London to Porsgrunn: time difference
Porsgrunn is 1 h ahead of London. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇳🇴 Porsgrunn, Norway
34
- Central European Summer Time
- UTC+2
- Golden hour
☀️ 08:03 · 🌙 18:11 · 10 h 8 min
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
London 15:46 3:46 PM Porsgrunn 16:46 4:46 PM You –:–
15:46 3:46 PM
British Summer Time · UTC+1
☀️ 07:28 · 🌙 18:05
16:46 4:46 PM
Central European Summer Time · UTC+2
☀️ 08:03 · 🌙 18:11
·
+1 h
Porsgrunn is 1 h ahead of London.
When you, London and Porsgrunn are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇬🇧 London
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
🇳🇴 Porsgrunn
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 | 🇬🇧 London | 🇳🇴 Porsgrunn |
|---|---|---|
| Local time | 15:46 | 16:46 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | British Summer Time | Central European Summer Time |
| UTC offset | UTC+1 | UTC+2 |
| Offset from London | — | +1 h |
| IANA zone | Europe/London | Europe/Oslo |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:28 | 08:03 |
| Sunset | 18:05 | 18:11 |
| Daylight | 10 h 37 min | 10 h 8 min |
| People on this clock | 8,908,083 | 37,144 |
Compare London with another city
More comparisons with London: the time zones next to it and the far side of the clock.
Big time differences
London and Porsgrunn: common questions
How many hours ahead of London is Porsgrunn?
The clocks in Porsgrunn are 1 hour ahead of those in London (UTC+2 and UTC+1).
What time is it in Porsgrunn at the start of the working day in London?
The working day in London starts at 9:00 AM; in Porsgrunn it is 10:00 AM at that moment.
What time is it in Porsgrunn when it is 6:00 PM in London?
When it is 6:00 PM in London, it is 7:00 PM in Porsgrunn.
Is there a time when both London and Porsgrunn are at work?
Yes: from 9:00 AM to 5:00 PM in London (10:00 AM to 6:00 PM in Porsgrunn), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Porsgrunn compared with London?
The new day starts in Porsgrunn earlier: at 11:00 PM in London it is already midnight there. Until 1:00 AM in Porsgrunn, London is still on the previous day.
Does the time gap between London and Porsgrunn change during the year?
No – both places switch to and from summer time on the same dates, so the gap stays 1 hour.
