Dhaka is 5 hours ahead of Prague
Best overlap: 8:00 AM to 1:00 PM in Prague is 1:00 PM to 6:00 PM in Dhaka.
For the smoothest call, aim inside 8:00 AM to 1:00 PM in Prague, i.e. 1:00 PM to 6:00 PM in Dhaka. Since Dhaka is 5 hours ahead of Prague, the workdays overlap by around 5 hours; 8:00 AM in Prague (1:00 PM in Dhaka) makes a reliable recurring slot. Daylight saving complicates things slightly: Prague observes it, Dhaka doesn't, so the difference flexes by an hour part of the year.