AA 2880 then DL 2398 at Atlanta
Miami → Atlanta → New York JFK
Timetable, Atlanta time
16:15AA 2880 from Miami at the gate
15:16DL 2398 to New York JFK leaves the gate
23 h 01 apart on the timetable, overnight
DL 2398 leaves 23 h 01 after AA 2880 arrives on the timetable: more than half a day, so not a connection we count.