Honolulu is 11 hours behind Hamburg
There is no standard 8-to-6 overlap. Someone joins early or late.
Hamburg and Honolulu are too far apart in time (11 hours) for their workdays to line up during regular hours. For anything urgent, agree on an early-morning or late-night bridge hour in advance so nobody's caught off guard. Just remember Hamburg changes its clocks for daylight saving and Honolulu doesn't, so confirm the overlap whenever the seasons turn.