Meeting Time Planner

Best time to call Buenos Aires from Osaka

Buenos Aires is 12 hours behind Osaka. Your working days don't overlap, so someone has to move.

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

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 Osaka time:
07:00 you → 19:00 Buenos Aires prev day
08:00 you → 20:00 Buenos Aires prev day

Your working day in Buenos Aires time

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

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