AA 883 then DL 3126 at Atlanta
Phoenix → Atlanta → Indianapolis
Timetable, Atlanta time
15:48AA 883 from Phoenix at the gate
15:47DL 3126 to Indianapolis leaves the gate
23 h 59 apart on the timetable, overnight
DL 3126 leaves 23 h 59 after AA 883 arrives on the timetable: more than half a day, so not a connection we count.