Jakarta is 11 hours ahead of Philadelphia

There is no standard 8-to-6 overlap. Someone joins early or late.

Jakarta is 11 hours ahead of Philadelphia, which is far enough that a normal 9-to-5 in one city never reaches the other's working hours. One practical option: Philadelphia dials in early while it's still late afternoon or evening in Jakarta. Keep an eye on the calendar — Philadelphia observes daylight saving and Jakarta doesn't, which nudges this window by an hour twice a year.