Jakarta is 16 hours ahead of Anchorage
Best overlap: 4:00 PM to 6:00 PM in Anchorage is 8:00 AM to 10:00 AM in Jakarta.
The overlap falls at 4:00 PM to 6:00 PM in Anchorage, or 8:00 AM to 10:00 AM if you're in Jakarta. There's roughly 2 hours to share, so keep agendas lean and meet at 4:00 PM in Anchorage (8:00 AM in Jakarta) to use every minute. In this window Anchorage and Jakarta are on different dates, with Jakarta on the next day. The window above shifts seasonally: Anchorage keeps daylight saving while Jakarta ignores it.