Cambridge, MA to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Cambridge, MA. Live clocks for both, the working hours they share, and how each one sits against your own time.
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Cambridge, MA 09:10 9:10 AM Buenos Aires 10:10 10:10 AM You –:–
09:10 9:10 AM
Eastern Daylight Time · UTC-4
☀️ 07:01 · 🌙 17:59
10:10 10:10 AM
Argentina Standard Time · UTC-3
☀️ 06:09 · 🌙 19:11
·
+1 h
Buenos Aires is 1 h ahead of Cambridge, MA.
When you, Cambridge, MA and Buenos Aires are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Cambridge, MA
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
🇦🇷 Buenos Aires
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Cambridge, MA | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 09:10 | 10:10 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Cambridge, MA | — | +1 h |
| IANA zone | America/New York | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:01 | 06:09 |
| Sunset | 17:59 | 19:11 |
| Daylight | 10 h 58 min | 13 h 2 min |
| People on this clock | 105,162 | 2,891,082 |
Compare Cambridge, MA with another city
More comparisons with Cambridge, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cambridge, MA and Buenos Aires: common questions
How far ahead of Cambridge, MA, is Buenos Aires?
Buenos Aires is 1 hour ahead of Cambridge: UTC−3 against UTC−4.
If it is 9:00 AM in Cambridge, MA, what time is it in Buenos Aires?
At 9:00 AM in Cambridge, clocks in Buenos Aires show 10:00 AM.
What time is it in Buenos Aires at the end of the working day in Cambridge, MA?
The working day in Cambridge ends at 6:00 PM; in Buenos Aires it is 7:00 PM at that moment.
Is there a time when both Cambridge, MA, and Buenos Aires are at work?
Yes: from 9:00 AM to 5:00 PM in Cambridge (10:00 AM to 6:00 PM in Buenos Aires), the working days (9:00 AM–6:00 PM) overlap.
When is it already the next day in Buenos Aires?
From 11:00 PM in Cambridge, MA, it is already the next day in Buenos Aires. The other way round, until 1:00 AM in Buenos Aires it is still the previous day in Cambridge.
Does the time difference between Cambridge, MA, and Buenos Aires change?
Yes. The clocks change only in Cambridge. From November 1, 2026, Buenos Aires will be 2 hours ahead of Cambridge.
