Lexington, MA to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Lexington, 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.
Lexington, MA 10:26 10:26 AM Buenos Aires 11:26 11:26 AM You –:–
10:26 10:26 AM
Eastern Daylight Time · UTC-4
☀️ 07:04 · 🌙 17:57
11:26 11:26 AM
Argentina Standard Time · UTC-3
☀️ 06:06 · 🌙 19:12
·
+1 h
Buenos Aires is 1 h ahead of Lexington, MA.
When you, Lexington, 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
🇺🇸 Lexington, 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
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Time zones side by side
| Detail | 🇺🇸 Lexington, MA | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 10:26 | 11:26 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Lexington, 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 | 07:04 | 06:06 |
| Sunset | 17:57 | 19:12 |
| Daylight | 10 h 52 min | 13 h 6 min |
| People on this clock | 322,570 | 2,891,082 |
Compare Lexington, MA with another city
More comparisons with Lexington, MA: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Lexington, MA and Buenos Aires: common questions
What is the time difference between Lexington, MA, and Buenos Aires?
Buenos Aires is 1 hour ahead: it uses UTC−3, while Lexington is on UTC−4.
What time is it in Buenos Aires at the start of the working day in Lexington, MA?
The working day in Lexington starts at 9:00 AM; in Buenos Aires it is 10:00 AM at that moment.
If it is 6:00 PM in Lexington, MA, what time is it in Buenos Aires?
At 6:00 PM in Lexington, clocks in Buenos Aires show 7:00 PM.
When is a good time to call Buenos Aires from Lexington, MA?
Between 9:00 AM and 5:00 PM in Lexington – that is 10:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
From what time in Lexington, MA, is it tomorrow in Buenos Aires?
Once it is 11:00 PM in Lexington, the date in Buenos Aires has already changed. Until 1:00 AM in Buenos Aires, it is still the previous day in Lexington.
Is the time difference between Lexington, MA, and Buenos Aires the same all year?
No. Only Lexington switches to summer time, so the gap changes twice a year. From November 1, 2026, Buenos Aires will be 2 hours ahead of Lexington.
