Arouca to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Arouca. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Arouca 21:25 9:25 PM Buenos Aires 22:25 10:25 PM You –:–
21:25 9:25 PM
Atlantic Standard Time · UTC-4
☀️ 05:55 · 🌙 17:52
22:25 10:25 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
·
+1 h
Buenos Aires is 1 h ahead of Arouca.
When you, Arouca and Buenos Aires are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇹 Arouca
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
🇦🇷 Buenos Aires
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇹 Arouca | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 21:25 | 22:25 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Atlantic Standard Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Arouca | — | +1 h |
| IANA zone | America/Port of Spain | America/Argentina/Buenos Aires |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:55 | 06:20 |
| Sunset | 17:52 | 19:03 |
| Daylight | 11 h 57 min | 12 h 43 min |
| People on this clock | 12,054 | 2,891,082 |
Compare Arouca with another city
More comparisons with Arouca: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Arouca and Buenos Aires: common questions
What is the time difference between Arouca and Buenos Aires?
Buenos Aires is 1 hour ahead: it uses UTC−3, while Arouca is on UTC−4.
If it is 9:00 AM in Arouca, what time is it in Buenos Aires?
At 9:00 AM in Arouca, clocks in Buenos Aires show 10:00 AM.
What time is it in Buenos Aires when it is 6:00 PM in Arouca?
When it is 6:00 PM in Arouca, it is 7:00 PM in Buenos Aires.
When do working hours in Arouca and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Arouca, which is 10:00 AM to 6:00 PM in Buenos Aires.
When is it already the next day in Buenos Aires?
From 11:00 PM in Arouca it is already the next day in Buenos Aires. The other way round, until 1:00 AM in Buenos Aires it is still the previous day in Arouca.
Is the time difference between Arouca and Buenos Aires the same all year?
Yes. Neither Arouca nor Buenos Aires switches to summer time, so the gap is always 1 hour.
