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Global ClockTime zone converter & meeting planner
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09
End
18
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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 Santa Maria vs Buenos Aires

Santa Maria keeps PDT (UTC−7) and Buenos Aires keeps UTC−3 (UTC−3) today. Buenos Aires is 4 hours ahead of Santa Maria; 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: 13:00–18:00 in Buenos Aires (09:00–14:00 your time).

Santa Maria and Buenos Aires hour by hour, with the working-hour overlap shaded
City00:00 in Santa Maria01:00 in Santa Maria02:00 in Santa Maria03:00 in Santa Maria04:00 in Santa Maria05:00 in Santa Maria06:00 in Santa Maria07:00 in Santa Maria08:00 in Santa Maria09:00 in Santa Maria10:00 in Santa Maria11:00 in Santa Maria12:00 in Santa Maria13:00 in Santa Maria14:00 in Santa Maria15:00 in Santa Maria16:00 in Santa Maria17:00 in Santa Maria18:00 in Santa Maria19:00 in Santa Maria20:00 in Santa Maria21:00 in Santa Maria22:00 in Santa Maria23:00 in Santa Maria
Santa Maria——000102030405060708091011121314151617181920212223
Buenos Aires——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

09:00 in Santa Maria
Inside working hours on both sides
13:00 in Buenos Aires
10:00 in Santa Maria
Inside working hours on both sides
14:00 in Buenos Aires
11:00 in Santa Maria
Inside working hours on both sides
15:00 in Buenos Aires
12:00 in Santa Maria
Inside working hours on both sides
16:00 in Buenos Aires

Where daylight saving pulls them apart

Santa Maria 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 Santa Maria?

Buenos Aires is 4 hours ahead of Santa Maria right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Santa Maria and Buenos Aires?

Any hour in 09:00–14:00 Santa Maria time is inside working hours in both cities.

Do Santa Maria 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.