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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 Diez de Octubre vs Buenos Aires

Diez de Octubre keeps UTC−4 (UTC−4) and Buenos Aires keeps UTC−3 (UTC−3) today. Buenos Aires is 1 hour ahead of Diez de Octubre; 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: 10:00–18:00 in Buenos Aires (09:00–17:00 your time).

Diez de Octubre and Buenos Aires hour by hour, with the working-hour overlap shaded
City00:00 in Diez de Octubre01:00 in Diez de Octubre02:00 in Diez de Octubre03:00 in Diez de Octubre04:00 in Diez de Octubre05:00 in Diez de Octubre06:00 in Diez de Octubre07:00 in Diez de Octubre08:00 in Diez de Octubre09:00 in Diez de Octubre10:00 in Diez de Octubre11:00 in Diez de Octubre12:00 in Diez de Octubre13:00 in Diez de Octubre14:00 in Diez de Octubre15:00 in Diez de Octubre16:00 in Diez de Octubre17:00 in Diez de Octubre18:00 in Diez de Octubre19:00 in Diez de Octubre20:00 in Diez de Octubre21:00 in Diez de Octubre22:00 in Diez de Octubre23:00 in Diez de Octubre
Diez de Octubre——000102030405060708091011121314151617181920212223
Buenos Aires——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Diez de Octubre 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 Diez de Octubre, Buenos Aires and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

09:00 in Diez de Octubre
Inside working hours on both sides
10:00 in Buenos Aires
10:00 in Diez de Octubre
Inside working hours on both sides
11:00 in Buenos Aires
11:00 in Diez de Octubre
Inside working hours on both sides
12:00 in Buenos Aires
12:00 in Diez de Octubre
Inside working hours on both sides
13:00 in Buenos Aires

Where daylight saving pulls them apart

Diez de Octubre 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 Diez de Octubre?

Buenos Aires is 1 hour ahead of Diez de Octubre right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Diez de Octubre and Buenos Aires?

Any hour in 09:00–17:00 Diez de Octubre time is inside working hours in both cities.

Do Diez de Octubre 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.