DL 2391 then DL 2398 at Atlanta
Boston → Atlanta → New York JFK
Timetable, Atlanta time
16:35DL 2391 from Boston at the gate
15:16DL 2398 to New York JFK leaves the gate
22 h 41 apart on the timetable, overnight
DL 2398 leaves 22 h 41 after DL 2391 arrives on the timetable: more than half a day, so not a connection we count.