London to Castelldefels: time difference
Castelldefels is 1 h ahead of London. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇪🇸 Castelldefels, Spain
09
- Central European Summer Time
- UTC+2
- Daytime
☀️ 08:08 · 🌙 19:07 · 10 h 58 min
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
London 11:01 11:01 AM Castelldefels 12:01 12:01 PM You –:–
11:01 11:01 AM
British Summer Time · UTC+1
☀️ 07:31 · 🌙 18:01
12:01 12:01 PM
Central European Summer Time · UTC+2
☀️ 08:08 · 🌙 19:07
·
+1 h
Castelldefels is 1 h ahead of London.
When you, London and Castelldefels 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
🇪🇸 Castelldefels
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 | 🇪🇸 Castelldefels |
|---|---|---|
| Local time | 11:01 | 12:01 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 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/Madrid |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:31 | 08:08 |
| Sunset | 18:01 | 19:07 |
| Daylight | 10 h 29 min | 10 h 58 min |
| People on this clock | 8,908,083 | 68,427 |
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 Castelldefels: common questions
How many hours ahead of London is Castelldefels?
The clocks in Castelldefels are 1 hour ahead of those in London (UTC+2 and UTC+1).
What time is it in Castelldefels at the start of the working day in London?
The working day in London starts at 9:00 AM; in Castelldefels it is 10:00 AM at that moment.
What time is it in Castelldefels at the end of the working day in London?
The working day in London ends at 6:00 PM; in Castelldefels it is 7:00 PM at that moment.
When is a good time to call Castelldefels from London?
Between 9:00 AM and 5:00 PM in London – that is 10:00 AM to 6:00 PM in Castelldefels – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Castelldefels compared with London?
The new day starts in Castelldefels earlier: at 11:00 PM in London it is already midnight there. Until 1:00 AM in Castelldefels, London is still on the previous day.
Does the time difference between London and Castelldefels change?
No. The clocks in London and in Castelldefels change on the same dates, so the difference stays 1 hour.
