Buenos Aires to Lexington, MA: time difference
Lexington, 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 12:28 12:28 PM Lexington, MA 11:28 11:28 AM You –:–
12:28 12:28 PM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
11:28 11:28 AM
Eastern Daylight Time · UTC-4
☀️ 07:04 · 🌙 17:57
·
−1 h
Lexington, MA is 1 h behind Buenos Aires.
When you, Buenos Aires and Lexington, 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
🇺🇸 Lexington, 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 | 🇺🇸 Lexington, MA |
|---|---|---|
| Local time | 12:28 | 11:28 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 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 | 06:06 | 07:04 |
| Sunset | 19:12 | 17:57 |
| Daylight | 13 h 6 min | 10 h 52 min |
| People on this clock | 2,891,082 | 322,570 |
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 Lexington, MA: common questions
What is the time difference between Buenos Aires and Lexington, MA?
Lexington is 1 hour behind: it uses UTC−4, while Buenos Aires is on UTC−3.
What time is it in Lexington, MA, when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 8:00 AM in Lexington.
What time is it in Lexington, MA, at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in Lexington it is 5:00 PM at that moment.
Is there a time when both Buenos Aires and Lexington, MA, are at work?
Yes: from 10:00 AM to 6:00 PM in Buenos Aires (9:00 AM to 5:00 PM in Lexington), the working days (9:00 AM–6:00 PM) overlap.
When is it still the previous day in Lexington, MA?
Until 1:00 AM in Buenos Aires it is still the previous day in Lexington. The other way round, from 11:00 PM in Lexington it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Lexington, MA, the same all year?
No. Only Lexington switches to summer time, so the gap changes twice a year. From November 1, 2026, Lexington will be 2 hours behind Buenos Aires.
