DL 2330 then DL 2398 at Atlanta
Boston → Atlanta → New York JFK
Timetable, Atlanta time
19:16DL 2330 from Boston at the gate
15:16DL 2398 to New York JFK leaves the gate
20 h apart on the timetable, overnight
DL 2398 leaves 20 h after DL 2330 arrives on the timetable: more than half a day, so not a connection we count.