Buenos Aires to Arouca: time difference
Arouca is 1 h behind Buenos Aires. 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.
Buenos Aires 23:18 11:18 PM Arouca 22:18 10:18 PM You –:–
23:18 11:18 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
22:18 10:18 PM
Atlantic Standard Time · UTC-4
☀️ 05:55 · 🌙 17:52
·
−1 h
Arouca is 1 h behind Buenos Aires.
When you, Buenos Aires and Arouca 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
🇹🇹 Arouca
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 21 9 PM 22 10 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇹🇹 Arouca |
|---|---|---|
| Local time | 23:18 | 22:18 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Argentina Standard Time | Atlantic Standard Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Buenos Aires | — | −1 h |
| IANA zone | America/Argentina/Buenos Aires | America/Port of Spain |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:20 | 05:55 |
| Sunset | 19:03 | 17:52 |
| Daylight | 12 h 43 min | 11 h 57 min |
| People on this clock | 2,891,082 | 12,054 |
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 Arouca: common questions
What is the time difference between Buenos Aires and Arouca?
Arouca is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Arouca when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 8:00 AM in Arouca.
If it is 6:00 PM in Buenos Aires, what time is it in Arouca?
At 6:00 PM in Buenos Aires, clocks in Arouca show 5:00 PM.
Is there a time when both Buenos Aires and Arouca are at work?
Yes: from 10:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 5:00 PM in Arouca), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Arouca?
Until 1:00 AM in Buenos Aires it is still the previous day in Arouca. The other way round, from 11:00 PM in Arouca it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Arouca the same all year?
Yes. Neither Buenos Aires nor Arouca switches to summer time, so the gap is always 1 hour.
