New York is 13 hours behind Tokyo

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

With 13 hours between them, Tokyo and New York have no overlap during standard business hours — by the time one team logs on, the other has logged off. The usual fix is an early start for New York or a late finish for Tokyo — pick whichever team has more flexibility. Note the seasonal wrinkle: when New York is on daylight saving and Tokyo isn't, the gap between them grows or shrinks by an hour.