🇦🇷 Buenos Aires, Argentina
29
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 06:14 · 🌙 19:07 · 12 h 54 min
Buenos Aires to Montana: time difference
Montana is 6 h ahead of Buenos Aires. Live clocks for both, the working hours they share, and how each one sits against your own time.
+6 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Buenos Aires 15:28 3:28 PM Montana 21:28 9:28 PM You –:–
15:28 3:28 PM
Argentina Standard Time · UTC-3
☀️ 06:14 · 🌙 19:07
21:28 9:28 PM
Eastern European Summer Time · UTC+3
☀️ 07:40 · 🌙 18:48
·
+6 h
Montana is 6 h ahead of Buenos Aires.
When you, Buenos Aires and Montana 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
🇧🇬 Montana
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 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇦🇷 Buenos Aires | 🇧🇬 Montana |
|---|---|---|
| Local time | 15:28 | 21:28 |
| Local date | Wednesday, October 14, 2026 | Wednesday, October 14, 2026 |
| Time zone | Argentina Standard Time | Eastern European Summer Time |
| UTC offset | UTC-3 | UTC+3 |
| Offset from Buenos Aires | — | +6 h |
| IANA zone | America/Argentina/Buenos Aires | Europe/Sofia |
| Daylight saving | Not observed | On summer time → UTC+2, Oct 25, 03:00 |
| Sunrise | 06:14 | 07:40 |
| Sunset | 19:07 | 18:48 |
| Daylight | 12 h 54 min | 11 h 8 min |
| People on this clock | 2,891,082 | 44,502 |
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 Montana: common questions
What is the time difference between Buenos Aires and Montana?
Montana is 6 hours ahead: it uses UTC+3, while Buenos Aires is on UTC−3.
What time is it in Montana when it is 9:00 AM in Buenos Aires?
When it is 9:00 AM in Buenos Aires, it is 3:00 PM in Montana.
If it is 6:00 PM in Buenos Aires, what time is it in Montana?
At 6:00 PM in Buenos Aires, clocks in Montana show 12:00 AM (the next day).
When is a good time to call Montana from Buenos Aires?
Between 9:00 AM and 12:00 PM in Buenos Aires – that is 3:00 PM to 6:00 PM in Montana – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Montana compared with Buenos Aires?
The new day starts in Montana earlier: at 6:00 PM in Buenos Aires it is already midnight there. Until 6:00 AM in Montana, Buenos Aires is still on the previous day.
Does the time difference between Buenos Aires and Montana change?
Yes. The clocks change only in Montana. From October 25, 2026, Montana will be 5 hours ahead of Buenos Aires.
