🇦🇷 Buenos Aires, Argentina
15
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 06:19 · 🌙 19:04 · 12 h 45 min
Buenos Aires to Charlestown: time difference
Charlestown 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 08:28 8:28 AM Charlestown 07:28 7:28 AM You –:–
08:28 8:28 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
07:28 7:28 AM
Atlantic Standard Time · UTC-4
☀️ 06:03 · 🌙 17:53
·
−1 h
Charlestown is 1 h behind Buenos Aires.
When you, Buenos Aires and Charlestown 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
🇰🇳 Charlestown
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 | 🇰🇳 Charlestown |
|---|---|---|
| Local time | 08:28 | 07:28 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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/St Kitts |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:19 | 06:03 |
| Sunset | 19:04 | 17:53 |
| Daylight | 12 h 45 min | 11 h 51 min |
| People on this clock | 2,891,082 | 1,500 |
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 Charlestown: common questions
How far behind Buenos Aires is Charlestown?
Charlestown is 1 hour behind Buenos Aires: UTC−4 against UTC−3.
What time is it in Charlestown when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 8:00 AM in Charlestown.
What time is it in Charlestown at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in Charlestown it is 5:00 PM at that moment.
When do working hours in Buenos Aires and in Charlestown overlap?
Working hours (9:00 AM–6:00 PM) overlap from 10:00 AM to 6:00 PM in Buenos Aires, which is 9:00 AM to 5:00 PM in Charlestown.
Until what time in Buenos Aires is it still yesterday in Charlestown?
Before 1:00 AM in Buenos Aires, the date in Charlestown has not changed yet. From 11:00 PM in Charlestown, it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Charlestown the same all year?
Yes. Neither Buenos Aires nor Charlestown switches to summer time, so the gap is always 1 hour.
