Buenos Aires to Boston, MA: time difference
Boston, MA 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 23:52 11:52 PM Boston, MA 22:52 10:52 PM You –:–
23:52 11:52 PM
Argentina Standard Time · UTC-3
☀️ 06:20 · 🌙 19:03
22:52 10:52 PM
Eastern Daylight Time · UTC-4
☀️ 06:51 · 🌙 18:14
·
−1 h
Boston, MA is 1 h behind Buenos Aires.
When you, Buenos Aires and Boston, MA 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
🇺🇸 Boston, MA
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 | 🇺🇸 Boston, MA |
|---|---|---|
| Local time | 23:52 | 22:52 |
| Local date | Friday, October 9, 2026 | Friday, October 9, 2026 |
| Time zone | Argentina Standard Time | Eastern Daylight Time |
| UTC offset | UTC-3 | UTC-4 |
| Offset from Buenos Aires | — | −1 h |
| IANA zone | America/Argentina/Buenos Aires | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 06:20 | 06:51 |
| Sunset | 19:03 | 18:14 |
| Daylight | 12 h 43 min | 11 h 23 min |
| People on this clock | 2,891,082 | 675,647 |
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 Boston, MA: common questions
How many hours behind Buenos Aires is Boston, MA?
The clocks in Boston are 1 hour behind those in Buenos Aires (UTC−4 and UTC−3).
If it is 9:00 AM in Buenos Aires, what time is it in Boston, MA?
At 9:00 AM in Buenos Aires, clocks in Boston show 8:00 AM.
If it is 6:00 PM in Buenos Aires, what time is it in Boston, MA?
At 6:00 PM in Buenos Aires, clocks in Boston show 5:00 PM.
When is a good time to call Boston, MA, from Buenos Aires?
Between 10:00 AM and 6:00 PM in Buenos Aires – that is 9:00 AM to 5:00 PM in Boston – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Boston, MA, compared with Buenos Aires?
The new day starts in Boston later: until 1:00 AM in Buenos Aires, it is still the previous day there. From 11:00 PM in Boston, Buenos Aires is already on the next day.
Does the time gap between Buenos Aires and Boston, MA, change during the year?
Yes – daylight saving time is used in Boston but not in Buenos Aires. From November 1, 2026, Boston will be 2 hours behind Buenos Aires.
