🇵🇹 Porto, Portugal
42
- Western European Standard Time
- UTC+0
- Twilight
☀️ 07:12 · 🌙 17:26 · 10 h 14 min
Porto to Sao Joao da Boa Vista: time difference
Sao Joao da Boa Vista is 3 h behind Porto. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇧🇷 Sao Joao da Boa Vista, Brazil
42
- Brasilia Standard Time
- UTC-3
- Night
☀️ 05:21 · 🌙 18:22 · 13 h 1 min
−3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Porto 06:42 6:42 AM Sao Joao da Boa Vista 03:42 3:42 AM You –:–
06:42 6:42 AM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
03:42 3:42 AM
Brasilia Standard Time · UTC-3
☀️ 05:21 · 🌙 18:22
·
−3 h
Sao Joao da Boa Vista is 3 h behind Porto.
When you, Porto and Sao Joao da Boa Vista 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
🇧🇷 Sao Joao da Boa Vista
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 | 🇧🇷 Sao Joao da Boa Vista |
|---|---|---|
| Local time | 06:42 | 03:42 |
| 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 | 05:21 |
| Sunset | 17:26 | 18:22 |
| Daylight | 10 h 14 min | 13 h 1 min |
| People on this clock | 231,828 | 92,547 |
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 Sao Joao da Boa Vista: common questions
How many hours behind Porto is Sao Joao da Boa Vista?
The clocks in Sao Joao da Boa Vista are 3 hours behind those in Porto (UTC−3 and UTC+0).
What time is it in Sao Joao da Boa Vista at the start of the working day in Porto?
The working day in Porto starts at 9:00 AM; in Sao Joao da Boa Vista it is 6:00 AM at that moment.
What time is it in Sao Joao da Boa Vista when it is 6:00 PM in Porto?
When it is 6:00 PM in Porto, it is 3:00 PM in Sao Joao da Boa Vista.
When is a good time to call Sao Joao da Boa Vista from Porto?
Between 12:00 PM and 6:00 PM in Porto – that is 9:00 AM to 3:00 PM in Sao Joao da Boa Vista – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Porto is it still yesterday in Sao Joao da Boa Vista?
Before 3:00 AM in Porto, the date in Sao Joao da Boa Vista has not changed yet. From 9:00 PM in Sao Joao da Boa Vista, it is already the next day in Porto.
Does the time difference between Porto and Sao Joao da Boa Vista change?
Yes. The clocks change only in Porto. From March 28, 2027, Sao Joao da Boa Vista will be 4 hours behind Porto.
