French Guiana to Porto: time difference
Porto 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.
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
French Guiana 08:40 8:40 AM Porto 11:40 11:40 AM You –:–
08:40 8:40 AM
French Guiana Time · UTC-3
☀️ 06:16 · 🌙 18:12
11:40 11:40 AM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
·
+3 h
Porto is 3 h ahead of French Guiana.
When you, French Guiana and Porto 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
🇵🇹 Porto
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 | 🇵🇹 Porto |
|---|---|---|
| Local time | 08:40 | 11:40 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | French Guiana Time | Western European Standard Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from French Guiana | — | +3 h |
| IANA zone | America/Cayenne | Europe/Lisbon |
| Daylight saving | Not observed | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 06:16 | 07:12 |
| Sunset | 18:12 | 17:26 |
| Daylight | 11 h 56 min | 10 h 14 min |
| People on this clock | 288,382 | 231,828 |
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 Porto: common questions
How far ahead of French Guiana is Porto?
Porto is 3 hours ahead of French Guiana: UTC+0 against UTC−3.
If it is 9:00 AM in French Guiana, what time is it in Porto?
At 9:00 AM in French Guiana, clocks in Porto show 12:00 PM.
What time is it in Porto at the end of the working day in French Guiana?
The working day in French Guiana ends at 6:00 PM; in Porto it is 9:00 PM at that moment.
When do working hours in French Guiana and in Porto overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in French Guiana, which is 12:00 PM to 6:00 PM in Porto.
From what time in French Guiana is it tomorrow in Porto?
Once it is 9:00 PM in French Guiana, the date in Porto has already changed. Until 3:00 AM in Porto, it is still the previous day in French Guiana.
Is the time difference between French Guiana and Porto the same all year?
No. Only Porto switches to summer time, so the gap changes twice a year. From March 28, 2027, Porto will be 4 hours ahead of French Guiana.
