🇦🇷 Buenos Aires, Argentina
24
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 06:19 · 🌙 19:04 · 12 h 45 min
Buenos Aires to Caldas da Rainha: time difference
Caldas da Rainha 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.
🇵🇹 Caldas da Rainha, Portugal
24
- Western European Summer Time
- UTC+1
- Daytime
☀️ 07:42 · 🌙 19:07 · 11 h 25 min
+4 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Buenos Aires 09:24 9:24 AM Caldas da Rainha 13:24 1:24 PM You –:–
09:24 9:24 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
13:24 1:24 PM
Western European Summer Time · UTC+1
☀️ 07:42 · 🌙 19:07
·
+4 h
Caldas da Rainha is 4 h ahead of Buenos Aires.
When you, Buenos Aires and Caldas da Rainha 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
🇵🇹 Caldas da Rainha
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 | 🇵🇹 Caldas da Rainha |
|---|---|---|
| Local time | 09:24 | 13:24 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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 | 06:19 | 07:42 |
| Sunset | 19:04 | 19:07 |
| Daylight | 12 h 45 min | 11 h 25 min |
| People on this clock | 2,891,082 | 50,917 |
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 Caldas da Rainha: common questions
How many hours ahead of Buenos Aires is Caldas da Rainha?
The clocks in Caldas da Rainha are 4 hours ahead of those in Buenos Aires (UTC+1 and UTC−3).
If it is 9:00 AM in Buenos Aires, what time is it in Caldas da Rainha?
At 9:00 AM in Buenos Aires, clocks in Caldas da Rainha show 1:00 PM.
What time is it in Caldas da Rainha when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 10:00 PM in Caldas da Rainha.
Is there a time when both Buenos Aires and Caldas da Rainha are at work?
Yes: from 9:00 AM to 2:00 PM in Buenos Aires (1:00 PM to 6:00 PM in Caldas da Rainha), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Caldas da Rainha?
From 8:00 PM in Buenos Aires it is already the next day in Caldas da Rainha. The other way round, until 4:00 AM in Caldas da Rainha it is still the previous day in Buenos Aires.
Does the time difference between Buenos Aires and Caldas da Rainha change?
Yes. The clocks change only in Caldas da Rainha. From October 25, 2026, Caldas da Rainha will be 3 hours ahead of Buenos Aires.
