DL 1932 then DL 2398 at Atlanta
Memphis → Atlanta → New York JFK
Timetable, Atlanta time
20:32DL 1932 from Memphis at the gate
15:16DL 2398 to New York JFK leaves the gate
18 h 44 apart on the timetable, overnight
DL 2398 leaves 18 h 44 after DL 1932 arrives on the timetable: more than half a day, so not a connection we count.