Addis Ababa is 3 hours behind Dhaka
Best overlap: 11:00 AM to 6:00 PM in Dhaka is 8:00 AM to 3:00 PM in Addis Ababa.
The overlap falls at 11:00 AM to 6:00 PM in Dhaka, or 8:00 AM to 3:00 PM if you're in Addis Ababa. The 3-hour gap barely gets in the way — you've got 7 hours of overlap, so pick whatever time fits the agenda.