Adelaide is 4.75 hours ahead of Kathmandu
Best overlap: 8:15 AM to 1:15 PM in Kathmandu is 1:00 PM to 6:00 PM in Adelaide.
Kathmandu and Adelaide overlap from 8:15 AM to 1:15 PM (Kathmandu) to the equivalent 1:00 PM to 6:00 PM in Adelaide — that's your meeting window. With about 5 hours of overlap, there's comfortable room for a daily stand-up — 8:15 AM in Kathmandu / 1:00 PM in Adelaide works well. One seasonal catch: Adelaide springs forward and falls back, but Kathmandu doesn't, so the gap changes by an hour for several months of the year.