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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 Hamamatsu vs Buenos Aires

Hamamatsu keeps JST (UTC+9) and Buenos Aires keeps UTC−3 (UTC−3) today. Buenos Aires is 12 hours behind Hamamatsu; the rows below read both clocks live.

The working day, side by side

The working days do not meet. there is no working-hour overlap with Buenos Aires — the nearest workable window is 05:00–06:00 your time (17:00 there).

Hamamatsu and Buenos Aires hour by hour, with the working-hour overlap shaded
City00:00 in Hamamatsu01:00 in Hamamatsu02:00 in Hamamatsu03:00 in Hamamatsu04:00 in Hamamatsu05:00 in Hamamatsu06:00 in Hamamatsu07:00 in Hamamatsu08:00 in Hamamatsu09:00 in Hamamatsu10:00 in Hamamatsu11:00 in Hamamatsu12:00 in Hamamatsu13:00 in Hamamatsu14:00 in Hamamatsu15:00 in Hamamatsu16:00 in Hamamatsu17:00 in Hamamatsu18:00 in Hamamatsu19:00 in Hamamatsu20:00 in Hamamatsu21:00 in Hamamatsu22:00 in Hamamatsu23:00 in Hamamatsu
Hamamatsu——000102030405060708091011121314151617181920212223
Buenos Aires——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

there is no working-hour overlap with Buenos Aires — the nearest workable window is 05:00–06:00 your time (17:00 there).

Where daylight saving pulls them apart

Neither Hamamatsu nor Buenos Aires changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Buenos Aires of Hamamatsu?

Buenos Aires is 12 hours behind Hamamatsu right now. The gap is not fixed: it moves whenever either side changes its clocks.

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

There is no hour inside working hours in both cities. 05:00–06:00 your time (17:00 there) is the cheapest compromise, and one side is taking a shoulder hour.

Do Hamamatsu and Buenos Aires change clocks on the same date?

Neither city changes its clocks, so the gap between them never moves.