Jakarta is 1.25 hours ahead of Kathmandu
Best overlap: 8:45 AM to 4:45 PM in Kathmandu is 10:00 AM to 6:00 PM in Jakarta.
Plan around 8:45 AM to 4:45 PM in Kathmandu, which is 10:00 AM to 6:00 PM in Jakarta, to catch everyone during office hours. The overlap is wide at 8 hours, so you can protect mornings for deep work and still find plenty of meeting time.