F9 2409 then DL 836 at Atlanta
Cleveland → Atlanta → Phoenix
Timetable, Atlanta time
17:20F9 2409 from Cleveland at the gate
16:25DL 836 to Phoenix leaves the gate
23 h 05 apart on the timetable, overnight
DL 836 leaves 23 h 05 after F9 2409 arrives on the timetable: more than half a day, so not a connection we count.