Melbourne is 2 hours ahead of Beijing
Best overlap: 8:00 AM to 4:00 PM in Beijing is 10:00 AM to 6:00 PM in Melbourne.
Target 8:00 AM to 4:00 PM in Beijing, which lands at 10:00 AM to 6:00 PM for the Melbourne side. Melbourne is 2 hours ahead of Beijing, but you'd hardly notice — 8 hours of shared hours makes this feel like working in neighbouring time zones. Note that Melbourne follows daylight saving while Beijing stays put, so the times above drift by an hour seasonally.