Calgary is 14 hours behind Beijing

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

Calgary is 14 hours behind Beijing, which is far enough that a normal 9-to-5 in one city never reaches the other's working hours. One practical option: Calgary dials in early while it's still late afternoon or evening in Beijing. Keep an eye on the calendar — Calgary observes daylight saving and Beijing doesn't, which nudges this window by an hour twice a year.