Buenos Aires to Coamo: time difference
Coamo 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 17:16 5:16 PM Coamo 16:16 4:16 PM You –:–
17:16 5:16 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
16:16 4:16 PM
Atlantic Standard Time · UTC-4
☀️ 06:20 · 🌙 18:03
·
−1 h
Coamo is 1 h behind Buenos Aires.
When you, Buenos Aires and Coamo 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
🇵🇷 Coamo
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 | 🇵🇷 Coamo |
|---|---|---|
| Local time | 17:16 | 16:16 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 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/Puerto Rico |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:10 | 06:20 |
| Sunset | 19:10 | 18:03 |
| Daylight | 13 h | 11 h 43 min |
| People on this clock | 2,891,082 | 40,000 |
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 Coamo: common questions
What is the time difference between Buenos Aires and Coamo?
Coamo is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Coamo when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 8:00 AM in Coamo.
If it is 6:00 PM in Buenos Aires, what time is it in Coamo?
At 6:00 PM in Buenos Aires, clocks in Coamo show 5:00 PM.
When is a good time to call Coamo from Buenos Aires?
Between 10:00 AM and 6:00 PM in Buenos Aires – that is 9:00 AM to 5:00 PM in Coamo – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Coamo compared with Buenos Aires?
The new day starts in Coamo later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in Coamo, Buenos Aires is already on the next day.
Does the time difference between Buenos Aires and Coamo change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
