London to Chatou: time difference
Chatou is 1 h ahead of London. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
London 15:42 3:42 PM Chatou 16:42 4:42 PM You –:–
15:42 3:42 PM
British Summer Time · UTC+1
☀️ 07:28 · 🌙 18:05
16:42 4:42 PM
Central European Summer Time · UTC+2
☀️ 08:15 · 🌙 19:00
·
+1 h
Chatou is 1 h ahead of London.
When you, London and Chatou 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
🇫🇷 Chatou
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 | 🇫🇷 Chatou |
|---|---|---|
| Local time | 15:42 | 16:42 |
| 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/Paris |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC+1, Oct 25, 02:00 |
| Sunrise | 07:28 | 08:15 |
| Sunset | 18:05 | 19:00 |
| Daylight | 10 h 37 min | 10 h 45 min |
| People on this clock | 8,908,083 | 29,649 |
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 Chatou: common questions
How many hours ahead of London is Chatou?
The clocks in Chatou are 1 hour ahead of those in London (UTC+2 and UTC+1).
What time is it in Chatou at the start of the working day in London?
The working day in London starts at 9:00 AM; in Chatou it is 10:00 AM at that moment.
What time is it in Chatou at the end of the working day in London?
The working day in London ends at 6:00 PM; in Chatou it is 7:00 PM at that moment.
Is there a time when both London and Chatou are at work?
Yes: from 9:00 AM to 5:00 PM in London (10:00 AM to 6:00 PM in Chatou), the working days (9:00 AM–6:00 PM) overlap.
From what time in London is it tomorrow in Chatou?
Once it is 11:00 PM in London, the date in Chatou has already changed. Until 1:00 AM in Chatou, it is still the previous day in London.
Is the time difference between London and Chatou the same all year?
Yes. Both places switch to summer time and back on the same dates, so the gap remains 1 hour.
