Dhaka is 0.5 hours ahead of Chennai
Best overlap: 8:30 AM to 5:30 PM in Chennai is 9:00 AM to 6:00 PM in Dhaka.
Schedule calls for 8:30 AM to 5:30 PM in Chennai — your colleagues in Dhaka will be online from 9:00 AM to 6:00 PM. Despite the 0.5-hour difference, a 9-hour overlap keeps things simple and gives both teams breathing room.