Porto to French Guiana: time difference
French Guiana is 3 h behind Porto. 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.
Porto 15:29 3:29 PM French Guiana 12:29 12:29 PM You –:–
15:29 3:29 PM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
12:29 12:29 PM
French Guiana Time · UTC-3
☀️ 06:16 · 🌙 18:12
·
−3 h
French Guiana is 3 h behind Porto.
When you, Porto and French Guiana are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇹 Porto
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
🇬🇫 French Guiana
21 9 PM 22 10 PM 23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Porto | 🇬🇫 French Guiana |
|---|---|---|
| Local time | 15:29 | 12:29 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Western European Standard Time | French Guiana Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Porto | — | −3 h |
| IANA zone | Europe/Lisbon | America/Cayenne |
| Daylight saving | On standard time → UTC+1, Mar 28, 02:00 | Not observed |
| Sunrise | 07:12 | 06:16 |
| Sunset | 17:26 | 18:12 |
| Daylight | 10 h 14 min | 11 h 56 min |
| People on this clock | 231,828 | 288,382 |
Compare Porto with another city
More comparisons with Porto: the time zones next to it and the far side of the clock.
Big time differences
Porto and French Guiana: common questions
How many hours behind Porto is French Guiana?
The clocks in French Guiana are 3 hours behind those in Porto (UTC−3 and UTC+0).
What time is it in French Guiana at the start of the working day in Porto?
The working day in Porto starts at 9:00 AM; in French Guiana it is 6:00 AM at that moment.
What time is it in French Guiana at the end of the working day in Porto?
The working day in Porto ends at 6:00 PM; in French Guiana it is 3:00 PM at that moment.
Is there a time when both Porto and French Guiana are at work?
Yes: from 12:00 PM to 6:00 PM in Porto (9:00 AM to 3:00 PM in French Guiana), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in French Guiana compared with Porto?
The new day starts in French Guiana later: until 3:00 AM in Porto, it is still the previous day there. From 9:00 PM in French Guiana, Porto is already on the next day.
Does the time gap between Porto and French Guiana change during the year?
Yes – daylight saving time is used in Porto but not in French Guiana. From March 28, 2027, French Guiana will be 4 hours behind Porto.
