Chicago is 13 hours behind Beijing

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

Beijing and Chicago are too far apart in time (13 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 Chicago changes its clocks for daylight saving and Beijing doesn't, so confirm the overlap whenever the seasons turn.