Beijing is 7 hours ahead of Copenhagen
Best overlap: 8:00 AM to 11:00 AM in Copenhagen is 3:00 PM to 6:00 PM in Beijing.
Both teams are at their desks between 8:00 AM to 11:00 AM in Copenhagen and 3:00 PM to 6:00 PM in Beijing. The overlap sits at about 3 hours; aim for the heart of it so the call isn't too early for one team or too late for the other. A quick caveat — Copenhagen's clocks move for daylight saving and Beijing's don't, so the times here are right for only part of the year.