🇦🇷 Buenos Aires, Argentina
57
- Argentina Standard Time
- UTC-3
- Golden hour
☀️ 06:19 · 🌙 19:04 · 12 h 45 min
Buenos Aires to Fort Collins, CO: time difference
Fort Collins, CO 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 06:45 6:45 AM Fort Collins, CO 03:45 3:45 AM You –:–
06:45 6:45 AM
Argentina Standard Time · UTC-3
☀️ 06:19 · 🌙 19:04
03:45 3:45 AM
Mountain Daylight Time · UTC-6
☀️ 07:07 · 🌙 18:29
·
−3 h
Fort Collins, CO is 3 h behind Buenos Aires.
When you, Buenos Aires and Fort Collins, CO 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
🇺🇸 Fort Collins, CO
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 | 🇺🇸 Fort Collins, CO |
|---|---|---|
| Local time | 06:45 | 03:45 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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 | 06:19 | 07:07 |
| Sunset | 19:04 | 18:29 |
| Daylight | 12 h 45 min | 11 h 23 min |
| People on this clock | 2,891,082 | 148,612 |
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 Fort Collins, CO: common questions
What is the time difference between Buenos Aires and Fort Collins, CO?
Fort Collins is 3 hours behind: it uses UTC−6, while Buenos Aires is on UTC−3.
What time is it in Fort Collins, CO, at the start of the working day in Buenos Aires?
The working day in Buenos Aires starts at 9:00 AM; in Fort Collins it is 6:00 AM at that moment.
What time is it in Fort Collins, CO, when it is 6:00 PM in Buenos Aires?
When it is 6:00 PM in Buenos Aires, it is 3:00 PM in Fort Collins.
When do working hours in Buenos Aires and in Fort Collins, CO, 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 Fort Collins.
Until what time in Buenos Aires is it still yesterday in Fort Collins, CO?
Before 3:00 AM in Buenos Aires, the date in Fort Collins has not changed yet. From 9:00 PM in Fort Collins, it is already the next day in Buenos Aires.
Does the time difference between Buenos Aires and Fort Collins, CO, change?
Yes. The clocks change only in Fort Collins. From November 1, 2026, Fort Collins will be 4 hours behind Buenos Aires.
