DL 706 then DL 2831 at Atlanta
Denver → Atlanta → Louisville
Timetable, Atlanta time
18:01DL 706 from Denver at the gate
17:51DL 2831 to Louisville leaves the gate
23 h 50 apart on the timetable, overnight
DL 2831 leaves 23 h 50 after DL 706 arrives on the timetable: more than half a day, so not a connection we count.