Wellington is 22 hours ahead of Anchorage
Best overlap: 10:00 AM to 6:00 PM in Anchorage is 8:00 AM to 4:00 PM in Wellington.
Plan around 10:00 AM to 6:00 PM in Anchorage, which is 8:00 AM to 4:00 PM in Wellington, 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. Because of the gap, Wellington is already on the next day, so confirm you're both talking about the same calendar date.