Chennai is 9.5 hours ahead of Miami
Best overlap: 8:00 AM to 9:00 AM in Miami is 5:30 PM to 6:30 PM in Chennai.
Keep meetings inside 8:00 AM to 9:00 AM in Miami — that maps to 5:30 PM to 6:30 PM in Chennai. Chennai is 9.5 hours ahead of Miami, so you only get about 1 hour of overlap a day — worth locking in a standing time like 8:00 AM in Miami (5:30 PM in Chennai) before it slips. Finally, Miami observes daylight saving and Chennai doesn't, so this window shifts by an hour for part of the year — recheck it each spring and autumn.