Anchorage is 16 hours behind Hanoi
Best overlap: 8:00 AM to 10:00 AM in Hanoi is 4:00 PM to 6:00 PM in Anchorage.
Schedule calls for 8:00 AM to 10:00 AM in Hanoi — your colleagues in Anchorage will be online from 4:00 PM to 6:00 PM. Anchorage is 16 hours behind Hanoi, so you only get about 2 hours of overlap a day — worth locking in a standing time like 8:00 AM in Hanoi (4:00 PM in Anchorage) before it slips. Heads up on dates: Anchorage will show the previous day relative to Hanoi when you meet. Because Anchorage and Hanoi don't both observe daylight saving, plan to re-check the overlap around March and November.