Monument, CO to Buenos Aires: time difference
Buenos Aires is 3 h ahead of Monument, CO. Live clocks for both, the working hours they share, and how each one sits against your own time.
🇦🇷 Buenos Aires, Argentina
47
- Argentina Standard Time
- UTC-3
- Daytime
☀️ 06:18 · 🌙 19:05 · 12 h 47 min
+3 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Monument, CO 05:52 5:52 AM Buenos Aires 08:52 8:52 AM You –:–
05:52 5:52 AM
Mountain Daylight Time · UTC-6
☀️ 07:06 · 🌙 18:28
08:52 8:52 AM
Argentina Standard Time · UTC-3
☀️ 06:18 · 🌙 19:05
·
+3 h
Buenos Aires is 3 h ahead of Monument, CO.
When you, Monument, CO 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
🇺🇸 Monument, CO
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
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 1 1 AM 2 2 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇺🇸 Monument, CO | 🇦🇷 Buenos Aires |
|---|---|---|
| Local time | 05:52 | 08:52 |
| Local date | Sunday, October 11, 2026 | Sunday, October 11, 2026 |
| Time zone | Mountain Daylight Time | Argentina Standard Time |
| UTC offset | UTC-6 | UTC-3 |
| Offset from Monument, CO | — | +3 h |
| IANA zone | America/Denver | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:06 | 06:18 |
| Sunset | 18:28 | 19:05 |
| Daylight | 11 h 22 min | 12 h 47 min |
| People on this clock | 10,000 | 2,891,082 |
Compare Monument, CO with another city
More comparisons with Monument, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Monument, CO and Buenos Aires: common questions
How far ahead of Monument, CO, is Buenos Aires?
Buenos Aires is 3 hours ahead of Monument: UTC−3 against UTC−6.
If it is 9:00 AM in Monument, CO, what time is it in Buenos Aires?
At 9:00 AM in Monument, clocks in Buenos Aires show 12:00 PM.
If it is 6:00 PM in Monument, CO, what time is it in Buenos Aires?
At 6:00 PM in Monument, clocks in Buenos Aires show 9:00 PM.
When do working hours in Monument, CO, and in Buenos Aires overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 3:00 PM in Monument, which is 12:00 PM to 6:00 PM in Buenos Aires.
When does the date change in Buenos Aires compared with Monument, CO?
The new day starts in Buenos Aires earlier: at 9:00 PM in Monument it is already midnight there. Until 3:00 AM in Buenos Aires, Monument is still on the previous day.
Does the time difference between Monument, CO, and Buenos Aires change?
Yes. The clocks change only in Monument. From November 1, 2026, Buenos Aires will be 4 hours ahead of Monument.
