Meeting Time Planner

Best time to call Tokyo from Buenos Aires

Tokyo is 12 hours ahead of Buenos Aires. Your working days don't overlap, so someone has to move.

Buenos Aires
11:55
Argentina
at build
Tokyo
23:55
Japan
Buenos Aires UTC-03:00 GMT-3Tokyo UTC+09:00 GMT+9

Your least-bad options

There is no 9–6 overlap. Stretching to 07:00–21:00 on both sides gives you 07:00–09:00 Buenos Aires time:
07:00 you → 19:00 Tokyo
08:00 you → 20:00 Tokyo

Your working day in Tokyo time

09:00→21:00outside Tokyo working hours
10:00→22:00outside Tokyo working hours
11:00→23:00outside Tokyo working hours
12:00→00:00next day · outside Tokyo working hours
13:00→01:00next day · outside Tokyo working hours
14:00→02:00next day · outside Tokyo working hours
15:00→03:00next day · outside Tokyo working hours
16:00→04:00next day · outside Tokyo working hours
17:00→05:00next day · outside Tokyo working hours

Working hours assumed 09:00–18:00 local. Offsets include daylight saving where it applies, so this shifts through the year.