DL 706 then DL 3126 at Atlanta
Denver → Atlanta → Indianapolis
Timetable, Atlanta time
18:01DL 706 from Denver at the gate
15:59DL 3126 to Indianapolis leaves the gate
21 h 58 apart on the timetable, overnight
DL 3126 leaves 21 h 58 after DL 706 arrives on the timetable: more than half a day, so not a connection we count.