DL 2104 then DL 2398 at Atlanta
Austin → Atlanta → New York JFK
Timetable, Atlanta time
18:19DL 2104 from Austin at the gate
15:16DL 2398 to New York JFK leaves the gate
20 h 57 apart on the timetable, overnight
DL 2398 leaves 20 h 57 after DL 2104 arrives on the timetable: more than half a day, so not a connection we count.