Buenos Aires to Butte, MT: time difference
Butte, 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 05:59 5:59 AM Butte, MT 02:59 2:59 AM You –:–
05:59 5:59 AM
Argentina Standard Time · UTC-3
☀️ 06:04 · 🌙 19:14
02:59 2:59 AM
Mountain Daylight Time · UTC-6
☀️ 07:57 · 🌙 18:33
·
−3 h
Butte, MT is 3 h behind Buenos Aires.
When you, Buenos Aires and Butte, 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
🇺🇸 Butte, 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 | 🇺🇸 Butte, MT |
|---|---|---|
| Local time | 05:59 | 02:59 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 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 | 06:04 | 07:57 |
| Sunset | 19:14 | 18:33 |
| Daylight | 13 h 10 min | 10 h 36 min |
| People on this clock | 2,891,082 | 35,000 |
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 Butte, MT: common questions
How far behind Buenos Aires is Butte, MT?
Butte is 3 hours behind Buenos Aires: UTC−6 against UTC−3.
What time is it in Butte, MT, at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Butte it is 6:00 AM at that moment.
If it is 6:00 PM in Buenos Aires, what time is it in Butte, MT?
At 6:00 PM in Buenos Aires, clocks in Butte show 3:00 PM.
When do working hours in Buenos Aires and in Butte, MT, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 12:00 PM to 6:00 PM in Buenos Aires, which is 9:00 AM to 3:00 PM in Butte.
Until what time in Buenos Aires is it still yesterday in Butte, MT?
Before 3:00 AM in Buenos Aires, the date in Butte has not changed yet. From 9:00 PM in Butte, it is already the next day in Buenos Aires.
Does the time difference between Buenos Aires and Butte, MT, change?
Yes. The clocks change only in Butte. From November 1, 2026, Butte will be 4 hours behind Buenos Aires.
