Shenzhen is 7 hours ahead of Milan
Best overlap: 8:00 AM to 11:00 AM in Milan is 3:00 PM to 6:00 PM in Shenzhen.
The sweet spot is 8:00 AM to 11:00 AM Milan time, matching 3:00 PM to 6:00 PM in Shenzhen. You get roughly 3 hours of shared time, so aim for the middle of that window to keep the call comfortable for both teams. Heads up: because Milan changes its clocks and Shenzhen doesn't, the difference moves by an hour twice a year. Confirm the overlap around the DST switch.