Assis to Porto: time difference
Porto is 3 h ahead of Assis. 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.
Assis 18:39 6:39 PM Porto 21:39 9:39 PM You –:–
18:39 6:39 PM
Brasilia Standard Time · UTC-3
☀️ 05:35 · 🌙 18:37
21:39 9:39 PM
Western European Standard Time · UTC+0
☀️ 07:11 · 🌙 17:27
·
+3 h
Porto is 3 h ahead of Assis.
When you, Assis 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
🇧🇷 Assis
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 | 🇧🇷 Assis | 🇵🇹 Porto |
|---|---|---|
| Local time | 18:39 | 21:39 |
| Local date | Thursday, November 5, 2026 | Thursday, November 5, 2026 |
| Time zone | Brasilia Standard Time | Western European Standard Time |
| UTC offset | UTC-3 | UTC+0 |
| Offset from Assis | — | +3 h |
| IANA zone | America/Sao Paulo | Europe/Lisbon |
| Daylight saving | Not observed | On standard time → UTC+1, Mar 28, 02:00 |
| Sunrise | 05:35 | 07:11 |
| Sunset | 18:37 | 17:27 |
| Daylight | 13 h 1 min | 10 h 16 min |
| People on this clock | 101,409 | 231,828 |
Compare Assis with another city
More comparisons with Assis: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Assis and Porto: common questions
What is the time difference between Assis and Porto?
Porto is 3 hours ahead: it uses UTC+0, while Assis is on UTC−3.
What time is it in Porto at the start of the working day in Assis?
The working day in Assis starts at 9:00 AM; in Porto it is 12:00 PM at that moment.
What time is it in Porto when it is 6:00 PM in Assis?
When it is 6:00 PM in Assis, it is 9:00 PM in Porto.
Is there a time when both Assis and Porto are at work?
Yes: from 9:00 AM to 3:00 PM in Assis (12:00 PM to 6:00 PM in Porto), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Porto compared with Assis?
The new day starts in Porto earlier: at 9:00 PM in Assis it is already midnight there. Until 3:00 AM in Porto, Assis is still on the previous day.
Does the time gap between Assis and Porto change during the year?
Yes – daylight saving time is used in Porto but not in Assis. From March 28, 2027, Porto will be 4 hours ahead of Assis.
