Doha is 5 hours behind Beijing
Best overlap: 1:00 PM to 6:00 PM in Beijing is 8:00 AM to 1:00 PM in Doha.
Your window to reach both cities is 1:00 PM to 6:00 PM in Beijing, which converts to 8:00 AM to 1:00 PM in Doha. The overlap sits at about 5 hours; aim for the heart of it so the call isn't too early for one team or too late for the other.