DL 346 then DL 2398 at Atlanta
Denver → Atlanta → New York JFK
Timetable, Atlanta time
15:20DL 346 from Denver at the gate
15:16DL 2398 to New York JFK leaves the gate
23 h 56 apart on the timetable, overnight
DL 2398 leaves 23 h 56 after DL 346 arrives on the timetable: more than half a day, so not a connection we count.