DL 1671 then DL 2398 at Atlanta
Jackson (Mississippi) → Atlanta → New York JFK
Timetable, Atlanta time
17:55DL 1671 from Jackson (Mississippi) at the gate
15:16DL 2398 to New York JFK leaves the gate
21 h 21 apart on the timetable, overnight
DL 2398 leaves 21 h 21 after DL 1671 arrives on the timetable: more than half a day, so not a connection we count.