Tokyo is 13 hours ahead of New York

There is no standard 8-to-6 overlap. Someone joins early or late.

Tokyo is 13 hours ahead of New York, so their typical working days don't line up at all. Plan on one side joining outside normal hours. A recurring slot that trades off between early mornings and late evenings usually works best. Just remember New York changes its clocks for daylight saving and Tokyo doesn't, so confirm the overlap whenever the seasons turn.