Porto to Guarulhos: time difference
Guarulhos 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 04:28 4:28 AM Guarulhos 01:28 1:28 AM You –:–
04:28 4:28 AM
Western European Standard Time · UTC+0
☀️ 07:12 · 🌙 17:26
01:28 1:28 AM
Brasilia Standard Time · UTC-3
☀️ 05:18 · 🌙 18:23
·
−3 h
Guarulhos is 3 h behind Porto.
When you, Porto and Guarulhos 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
🇧🇷 Guarulhos
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 | 🇧🇷 Guarulhos |
|---|---|---|
| Local time | 04:28 | 01:28 |
| 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 | 05:18 |
| Sunset | 17:26 | 18:23 |
| Daylight | 10 h 14 min | 13 h 5 min |
| People on this clock | 231,828 | 1,291,771 |
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 Guarulhos: common questions
What is the time difference between Porto and Guarulhos?
Guarulhos is 3 hours behind: it uses UTC−3, while Porto is on UTC+0.
If it is 9:00 AM in Porto, what time is it in Guarulhos?
At 9:00 AM in Porto, clocks in Guarulhos show 6:00 AM.
What time is it in Guarulhos when it is 6:00 PM in Porto?
When it is 6:00 PM in Porto, it is 3:00 PM in Guarulhos.
When do working hours in Porto and in Guarulhos overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Porto, which is 9:00 AM to 3:00 PM in Guarulhos.
When is it still the previous day in Guarulhos?
Until 3:00 AM in Porto it is still the previous day in Guarulhos. The other way round, from 9:00 PM in Guarulhos it is already the next day in Porto.
Is the time difference between Porto and Guarulhos the same all year?
No. Only Porto switches to summer time, so the gap changes twice a year. From March 28, 2027, Guarulhos will be 4 hours behind Porto.
