Buenos Aires to Billings, MT: time difference
Billings, MT is 3 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 15:44 3:44 PM Billings, MT 12:44 12:44 PM You –:–
15:44 3:44 PM
Argentina Standard Time · UTC-3
☀️ 06:07 · 🌙 19:11
12:44 12:44 PM
Mountain Daylight Time · UTC-6
☀️ 07:37 · 🌙 18:23
·
−3 h
Billings, MT is 3 h behind Buenos Aires.
When you, Buenos Aires and Billings, MT 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
🇺🇸 Billings, MT
21 9 PM 22 10 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇺🇸 Billings, MT |
|---|---|---|
| Local time | 15:44 | 12:44 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Argentina Standard Time | Mountain Daylight Time |
| UTC offset | UTC-3 | UTC-6 |
| Offset from Buenos Aires | — | −3 h |
| IANA zone | America/Argentina/Buenos Aires | America/Denver |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 06:07 | 07:37 |
| Sunset | 19:11 | 18:23 |
| Daylight | 13 h 4 min | 10 h 46 min |
| People on this clock | 2,891,082 | 117,116 |
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 Billings, MT: common questions
How far behind Buenos Aires is Billings, MT?
Billings is 3 hours behind Buenos Aires: UTC−6 against UTC−3.
What time is it in Billings, MT, at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Billings it is 6:00 AM at that moment.
What time is it in Billings, MT, at the end of the working day in Buenos Aires?
The working day in Buenos Aires ends at 6:00 PM; in Billings it is 3:00 PM at that moment.
When is a good time to call Billings, MT, from Buenos Aires?
Between 12:00 PM and 6:00 PM in Buenos Aires – that is 9:00 AM to 3:00 PM in Billings – both places are within working hours (9:00 AM–6:00 PM).
Until what time in Buenos Aires is it still yesterday in Billings, MT?
Before 3:00 AM in Buenos Aires, the date in Billings has not changed yet. From 9:00 PM in Billings, it is already the next day in Buenos Aires.
Is the time difference between Buenos Aires and Billings, MT, the same all year?
No. Only Billings switches to summer time, so the gap changes twice a year. From November 1, 2026, Billings will be 4 hours behind Buenos Aires.
