Buenos Aires to Dartmouth: time difference
Dartmouth 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 00:39 12:39 AM Dartmouth 23:39 11:39 PM You –:–
00:39 12:39 AM
Argentina Standard Time · UTC-3
☀️ 05:49 · 🌙 19:27
23:39 11:39 PM
Atlantic Standard Time · UTC-4
☀️ 06:58 · 🌙 16:59
·
−1 h
Dartmouth is 1 h behind Buenos Aires.
When you, Buenos Aires and Dartmouth 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
🇨🇦 Dartmouth
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 | 🇨🇦 Dartmouth |
|---|---|---|
| Local time | 00:39 | 23:39 |
| Local date | Friday, November 6, 2026 | Thursday, November 5, 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/Halifax |
| Daylight saving | Not observed | On standard time → UTC-3, Mar 14, 03:00 |
| Sunrise | 05:49 | 06:58 |
| Sunset | 19:27 | 16:59 |
| Daylight | 13 h 38 min | 10 h 1 min |
| People on this clock | 2,891,082 | 70,000 |
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 Dartmouth: common questions
What is the time difference between Buenos Aires and Dartmouth?
Dartmouth is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Dartmouth at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Dartmouth it is 8:00 AM at that moment.
What time is it in Dartmouth when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 5:00 PM in Dartmouth.
When do working hours in Buenos Aires and in Dartmouth 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 Dartmouth.
When is it still the previous day in Dartmouth?
Until 1:00 AM in Buenos Aires it is still the previous day in Dartmouth. The other way round, from 11:00 PM in Dartmouth it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Dartmouth the same all year?
No. Only Dartmouth switches to summer time, so the gap changes twice a year. From March 14, 2027, Dartmouth and Buenos Aires will have the same time.
