Guarulhos to Casablanca: time difference
Casablanca is 4 h ahead of Guarulhos. 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.
Guarulhos 00:37 12:37 AM Casablanca 04:37 4:37 AM You –:–
00:37 12:37 AM
Brasilia Standard Time · UTC-3
☀️ 05:31 · 🌙 18:12
04:37 4:37 AM
GMT+01:00 · UTC+1
☀️ 07:38 · 🌙 18:55
·
+4 h
Casablanca is 4 h ahead of Guarulhos.
When you, Guarulhos and Casablanca are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇧🇷 Guarulhos
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
🇲🇦 Casablanca
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 3 3 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇧🇷 Guarulhos | 🇲🇦 Casablanca |
|---|---|---|
| Local time | 00:37 | 04:37 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Brasilia Standard Time | GMT+01:00 |
| UTC offset | UTC-3 | UTC+1 |
| Offset from Guarulhos | — | +4 h |
| IANA zone | America/Sao Paulo | Africa/Casablanca |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:31 | 07:38 |
| Sunset | 18:12 | 18:55 |
| Daylight | 12 h 41 min | 11 h 17 min |
| People on this clock | 1,291,771 | 3,215,935 |
Compare Guarulhos with another city
More comparisons with Guarulhos: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Guarulhos and Casablanca: common questions
How many hours ahead of Guarulhos is Casablanca?
The clocks in Casablanca are 3 hours ahead of those in Guarulhos (UTC+0 and UTC−3).
If it is 9:00 AM in Guarulhos, what time is it in Casablanca?
At 9:00 AM in Guarulhos, clocks in Casablanca show 12:00 PM.
What time is it in Casablanca at the end of the working day in Guarulhos?
The working day in Guarulhos ends at 6:00 PM; in Casablanca it is 9:00 PM at that moment.
Is there a time when both Guarulhos and Casablanca are at work?
Yes: from 9:00 AM to 3:00 PM in Guarulhos (12:00 PM to 6:00 PM in Casablanca), the working days (9:00 AM–6:00 PM) overlap.
From what time in Guarulhos is it tomorrow in Casablanca?
Once it is 9:00 PM in Guarulhos, the date in Casablanca has already changed. Until 3:00 AM in Casablanca, it is still the previous day in Guarulhos.
Does the time gap between Guarulhos and Casablanca change during the year?
No, the clocks change neither in Guarulhos nor in Casablanca, so the gap is 3 hours all year round.
