Hong Kong is 13 hours ahead of Ottawa
There is no standard 8-to-6 overlap. Someone joins early or late.
Ottawa and Hong Kong 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. The window above shifts seasonally: Ottawa keeps daylight saving while Hong Kong ignores it.