Dhaka is 5 hours ahead of Hamburg
Best overlap: 8:00 AM to 1:00 PM in Hamburg is 1:00 PM to 6:00 PM in Dhaka.
Keep meetings inside 8:00 AM to 1:00 PM in Hamburg — that maps to 1:00 PM to 6:00 PM in Dhaka. With 5 hours of overlap, 8:00 AM in Hamburg (1:00 PM in Dhaka) is a comfortable, repeatable slot for both sides. Because Hamburg and Dhaka don't both observe daylight saving, plan to re-check the overlap around March and November.