Skip to content
Global ClockTime zone converter & meeting planner
PAGES
SETTINGS
Clock
Working hours
Start
09
End
18
Theme

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

Time in San Juan vs Buenos Aires

San Juan keeps AST (UTC−4) and Buenos Aires keeps UTC−3 (UTC−3) today. Buenos Aires is 1 hour ahead of San Juan; 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).

San Juan and Buenos Aires hour by hour, with the working-hour overlap shaded
City00:00 in San Juan01:00 in San Juan02:00 in San Juan03:00 in San Juan04:00 in San Juan05:00 in San Juan06:00 in San Juan07:00 in San Juan08:00 in San Juan09:00 in San Juan10:00 in San Juan11:00 in San Juan12:00 in San Juan13:00 in San Juan14:00 in San Juan15:00 in San Juan16:00 in San Juan17:00 in San Juan18:00 in San Juan19:00 in San Juan20:00 in San Juan21:00 in San Juan22:00 in San Juan23:00 in San Juan
San Juan——000102030405060708091011121314151617181920212223
Buenos Aires——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

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

Best hours to call

09:00 in San Juan
Inside working hours on both sides
10:00 in Buenos Aires
10:00 in San Juan
Inside working hours on both sides
11:00 in Buenos Aires
11:00 in San Juan
Inside working hours on both sides
12:00 in Buenos Aires
12:00 in San Juan
Inside working hours on both sides
13:00 in Buenos Aires

Where daylight saving pulls them apart

Neither San Juan 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 San Juan?

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

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

Any hour in 09:00–17:00 San Juan time is inside working hours in both cities.

Do San Juan and Buenos Aires change clocks on the same date?

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