Buenos Aires to Cascais: time difference
Cascais is 4 h ahead of Buenos Aires. Live clocks for both, the working hours they share, and how each one sits against your own time.
+4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Buenos Aires 03:33 3:33 AM Cascais 07:33 7:33 AM You –:–
03:33 3:33 AM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
07:33 7:33 AM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:55
·
+4 h
Cascais is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Cascais are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇦🇷 Buenos Aires
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
🇵🇹 Cascais
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 | 🇦🇷 Buenos Aires | 🇵🇹 Cascais |
|---|---|---|
| Local time | 03:33 | 07:33 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Argentina Standard Time | Western European Summer Time |
| UTC offset | UTC-3 | UTC+1 |
| Offset from Buenos Aires | — | +4 h |
| IANA zone | America/Argentina/Buenos Aires | Europe/Lisbon |
| Daylight saving | Not observed | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 06:07 | 07:51 |
| Sunset | 19:11 | 18:55 |
| Daylight | 13 h 4 min | 11 h 4 min |
| People on this clock | 2,891,082 | 214,158 |
Compare Buenos Aires with another city
More comparisons with Buenos Aires: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Buenos Aires and Cascais: common questions
How many hours ahead of Buenos Aires is Cascais?
The clocks in Cascais are 4 hours ahead of those in Buenos Aires (UTC+1 and UTC−3).
What time is it in Cascais when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 1:00 PM in Cascais.
What time is it in Cascais at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in Cascais it is 10:00 PM at that moment.
Is there a time when both Buenos Aires and Cascais are at work?
Yes: from 9:00 AM to 2:00 PM in Buenos Aires (1:00 PM to 6:00 PM in Cascais), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Cascais?
From 8:00 PM in Buenos Aires it is already the next day in Cascais. The other way round, until 4:00 AM in Cascais it is still the previous day in Buenos Aires.
Does the time difference between Buenos Aires and Cascais change?
Yes. The clocks change only in Cascais. From October 25, 2026, Cascais will be 3 hours ahead of Buenos Aires.
