Shenzhen is 2 hours ahead of Dhaka
Best overlap: 8:00 AM to 4:00 PM in Dhaka is 10:00 AM to 6:00 PM in Shenzhen.
Dhaka and Shenzhen overlap from 8:00 AM to 4:00 PM (Dhaka) to the equivalent 10:00 AM to 6:00 PM in Shenzhen — that's your meeting window. An 8-hour overlap gives you real choice here — early or late in the window both work comfortably.