DL 2599 then DL 3153 at Atlanta
Madison → Atlanta → Indianapolis
Timetable, Atlanta time
22:59DL 2599 from Madison at the gate
21:50DL 3153 to Indianapolis leaves the gate
22 h 51 apart on the timetable, overnight
DL 3153 leaves 22 h 51 after DL 2599 arrives on the timetable: more than half a day, so not a connection we count.