French Guiana to London: time difference
London is 3 h ahead of French Guiana. 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.
French Guiana 20:25 8:25 PM London 23:25 11:25 PM You –:–
20:25 8:25 PM
French Guiana Time · UTC-3
☀️ 06:16 · 🌙 18:12
23:25 11:25 PM
Greenwich Mean Time · UTC+0
☀️ 07:01 · 🌙 16:28
·
+3 h
London is 3 h ahead of French Guiana.
When you, French Guiana and London are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇬🇫 French Guiana
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
🇬🇧 London
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 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇬🇫 French Guiana | 🇬🇧 London |
|---|---|---|
| Local time | 20:25 | 23:25 |
| Local date | Thursday, November 5, 2026 | Thursday, November 5, 2026 |
| Time zone | French Guiana Time | Greenwich Mean Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from French Guiana | — | +3 h |
| IANA zone | America/Cayenne | Europe/London |
| Daylight saving | Not observed | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 06:16 | 07:01 |
| Sunset | 18:12 | 16:28 |
| Daylight | 11 h 56 min | 9 h 27 min |
| People on this clock | 288,382 | 8,908,083 |
Compare French Guiana with another city
More comparisons with French Guiana: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
French Guiana and London: common questions
How many hours ahead of French Guiana is London?
The clocks in London are 3 hours ahead of those in French Guiana (UTC+0 and UTC−3).
What time is it in London when it is 9:00 AM in French Guiana?
When it is 9:00 AM in French Guiana, it is 12:00 PM in London.
What time is it in London at the end of the working day in French Guiana?
The working day in French Guiana ends at 6:00 PM; in London it is 9:00 PM at that moment.
When is a good time to call London from French Guiana?
Between 9:00 AM and 3:00 PM in French Guiana – that is 12:00 PM to 6:00 PM in London – both places are within working hours (9:00 AM–6:00 PM).
From what time in French Guiana is it tomorrow in London?
Once it is 9:00 PM in French Guiana, the date in London has already changed. Until 3:00 AM in London, it is still the previous day in French Guiana.
Is the time difference between French Guiana and London the same all year?
No. Only London switches to summer time, so the gap changes twice a year. From March 28, 2027, London will be 4 hours ahead of French Guiana.
