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Global ClockTime zone converter & meeting planner
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09
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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 San Diego vs Buenos Aires

San Diego keeps PDT (UTC−7) and Buenos Aires keeps UTC−3 (UTC−3) today. Buenos Aires is 4 hours ahead of San Diego; 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).

San Diego and Buenos Aires hour by hour, with the working-hour overlap shaded
City00:00 in San Diego01:00 in San Diego02:00 in San Diego03:00 in San Diego04:00 in San Diego05:00 in San Diego06:00 in San Diego07:00 in San Diego08:00 in San Diego09:00 in San Diego10:00 in San Diego11:00 in San Diego12:00 in San Diego13:00 in San Diego14:00 in San Diego15:00 in San Diego16:00 in San Diego17:00 in San Diego18:00 in San Diego19:00 in San Diego20:00 in San Diego21:00 in San Diego22:00 in San Diego23:00 in San Diego
San Diego——000102030405060708091011121314151617181920212223
Buenos Aires——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

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

Where daylight saving pulls them apart

San Diego 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 San Diego?

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

What is the best time to call between San Diego and Buenos Aires?

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

Do San Diego 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.