Addis Ababa is 2.5 hours behind Chennai
Best overlap: 11:00 AM to 6:00 PM in Chennai is 8:30 AM to 3:30 PM in Addis Ababa.
Book within 11:00 AM to 6:00 PM Chennai time (8:30 AM to 3:30 PM in Addis Ababa) and both teams will be at work. That's a roomy 7 hours of common time each day, so finding a slot that suits everyone is rarely a problem.