Porto to Atibaia: time difference
Atibaia 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 21:14 9:14 PM Atibaia 18:14 6:14 PM You –:–
21:14 9:14 PM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
18:14 6:14 PM
Brasilia Standard Time · UTC-3
☀️ 05:19 · 🌙 18:23
·
−3 h
Atibaia is 3 h behind Porto.
When you, Porto and Atibaia 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
🇧🇷 Atibaia
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 | 🇧🇷 Atibaia |
|---|---|---|
| Local time | 21:14 | 18:14 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Western European Standard Time | Brasilia Standard Time |
| UTC offset | UTC+0 | UTC-3 |
| Offset from Porto | — | −3 h |
| IANA zone | Europe/Lisbon | America/Sao Paulo |
| Daylight saving | On standard time → UTC+1, Mar 28, 02:00 | Not observed |
| Sunrise | 07:12 | 05:19 |
| Sunset | 17:26 | 18:23 |
| Daylight | 10 h 14 min | 13 h 4 min |
| People on this clock | 231,828 | 158,647 |
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 Atibaia: common questions
How many hours behind Porto is Atibaia?
The clocks in Atibaia are 3 hours behind those in Porto (UTC−3 and UTC+0).
If it is 9:00 AM in Porto, what time is it in Atibaia?
At 9:00 AM in Porto, clocks in Atibaia show 6:00 AM.
What time is it in Atibaia when it is 6:00 PM in Porto?
When it is 6:00 PM in Porto, it is 3:00 PM in Atibaia.
When is a good time to call Atibaia from Porto?
Between 12:00 PM and 6:00 PM in Porto – that is 9:00 AM to 3:00 PM in Atibaia – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Atibaia compared with Porto?
The new day starts in Atibaia later: until 3:00 AM in Porto, it is still the previous day there. From 9:00 PM in Atibaia, Porto is already on the next day.
Does the time gap between Porto and Atibaia change during the year?
Yes – daylight saving time is used in Porto but not in Atibaia. From March 28, 2027, Atibaia will be 4 hours behind Porto.
