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AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in Fort Collins vs Buenos Aires

Fort Collins keeps MDT (UTC−6) and Buenos Aires keeps UTC−3 (UTC−3) today. Buenos Aires is 3 hours ahead of Fort Collins; the rows below read both clocks live.

The working day, side by side

Hours shaded in both rows are inside working hours in both cities: 12:00–18:00 in Buenos Aires (09:00–15:00 your time).

Fort Collins and Buenos Aires hour by hour, with the working-hour overlap shaded
City00:00 in Fort Collins01:00 in Fort Collins02:00 in Fort Collins03:00 in Fort Collins04:00 in Fort Collins05:00 in Fort Collins06:00 in Fort Collins07:00 in Fort Collins08:00 in Fort Collins09:00 in Fort Collins10:00 in Fort Collins11:00 in Fort Collins12:00 in Fort Collins13:00 in Fort Collins14:00 in Fort Collins15:00 in Fort Collins16:00 in Fort Collins17:00 in Fort Collins18:00 in Fort Collins19:00 in Fort Collins20:00 in Fort Collins21:00 in Fort Collins22:00 in Fort Collins23:00 in Fort Collins
Fort Collins——000102030405060708091011121314151617181920212223
Buenos Aires——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Fort Collins and Buenos Aires

Open in the PlannerAdd more cities, find a meeting time that works for everyone, then share it as a link.Open in Watch ViewKeep Fort Collins, Buenos Aires and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

09:00 in Fort Collins
Inside working hours on both sides
12:00 in Buenos Aires
10:00 in Fort Collins
Inside working hours on both sides
13:00 in Buenos Aires
11:00 in Fort Collins
Inside working hours on both sides
14:00 in Buenos Aires
12:00 in Fort Collins
Inside working hours on both sides
15:00 in Buenos Aires

Where daylight saving pulls them apart

Fort Collins next changes on Sunday 1 November 2026. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.

Also useful

Common questions

How many hours ahead is Buenos Aires of Fort Collins?

Buenos Aires is 3 hours ahead of Fort Collins right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Fort Collins and Buenos Aires?

Any hour in 09:00–15:00 Fort Collins time is inside working hours in both cities.

Do Fort Collins and Buenos Aires change clocks on the same date?

Only one of them does, so the gap between them changes twice a year even though neither city moved relative to the sun.