Tehran is 2.5 hours behind Dhaka
Best overlap: 11:00 AM to 6:00 PM in Dhaka is 8:30 AM to 3:30 PM in Tehran.
Aim for 11:00 AM to 6:00 PM Dhaka time — that's 8:30 AM to 3:30 PM over in Tehran. Despite the 2.5-hour difference, a 7-hour overlap keeps things simple and gives both teams breathing room.