Beijing is 6 hours ahead of Zurich
Best overlap: 8:00 AM to 12:00 PM in Zurich is 2:00 PM to 6:00 PM in Beijing.
If you set up a recurring sync, 8:00 AM to 12:00 PM in Zurich (2:00 PM to 6:00 PM in Beijing) is the natural home for it. You share roughly 4 hours a day. That's enough for regular meetings, but treat the window as prime time and guard it. Finally, Zurich observes daylight saving and Beijing doesn't, so this window shifts by an hour for part of the year — recheck it each spring and autumn.