F9 2409 then DL 2398 at Atlanta
Cleveland → Atlanta → New York JFK
Timetable, Atlanta time
17:20F9 2409 from Cleveland at the gate
15:16DL 2398 to New York JFK leaves the gate
21 h 56 apart on the timetable, overnight
DL 2398 leaves 21 h 56 after F9 2409 arrives on the timetable: more than half a day, so not a connection we count.