Columbia, MD to Buenos Aires: time difference
Buenos Aires is 1 h ahead of Columbia, MD. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇦🇷 Buenos Aires, Argentina
52
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 06:19 · 🌙 19:04 · 12 h 45 min
+1 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Columbia, MD 09:49 9:49 AM Buenos Aires 10:49 10:49 AM You –:–
09:49 9:49 AM
Eastern Daylight Time · UTC-4
☀️ 07:13 · 🌙 18:37
10:49 10:49 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
·
+1 h
Buenos Aires is 1 h ahead of Columbia, MD.
When you, Columbia, MD 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
🇺🇸 Columbia, MD
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 | 🇺🇸 Columbia, MD | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 09:49 | 10:49 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Columbia, MD | — | +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 | 07:13 | 06:19 |
| Sunset | 18:37 | 19:04 |
| Daylight | 11 h 25 min | 12 h 45 min |
| People on this clock | 139,698 | 2,891,082 |
Compare Columbia, MD with another city
More comparisons with Columbia, MD: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Columbia, MD and Buenos Aires: common questions
How many hours ahead of Columbia, MD, is Buenos Aires?
The clocks in Buenos Aires are 1 hour ahead of those in Columbia (UTC−3 and UTC−4).
If it is 9:00 AM in Columbia, MD, what time is it in Buenos Aires?
At 9:00 AM in Columbia, clocks in Buenos Aires show 10:00 AM.
What time is it in Buenos Aires at the end of the working day in Columbia, MD?
The working day in Columbia ends at 6:00 PM; in Buenos Aires it is 7:00 PM at that moment.
When is a good time to call Buenos Aires from Columbia, MD?
Between 9:00 AM and 5:00 PM in Columbia – that is 10:00 AM to 6:00 PM in Buenos Aires – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Buenos Aires?
From 11:00 PM in Columbia, MD, 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 Columbia.
Does the time difference between Columbia, MD, and Buenos Aires change?
Yes. The clocks change only in Columbia. From November 1, 2026, Buenos Aires will be 2 hours ahead of Columbia.
