Prague is 7 hours behind Beijing
Best overlap: 3:00 PM to 6:00 PM in Beijing is 8:00 AM to 11:00 AM in Prague.
The sweet spot is 3:00 PM to 6:00 PM Beijing time, matching 8:00 AM to 11:00 AM in Prague. You've got a decent 3-hour window. Set a recurring time near 3:00 PM in Beijing (8:00 AM in Prague) and stick to it. Heads up: because Prague changes its clocks and Beijing doesn't, the difference moves by an hour twice a year. Confirm the overlap around the DST switch.