DL 528 then DL 2398 at Atlanta
Los Angeles → Atlanta → New York JFK
Timetable, Atlanta time
17:26DL 528 from Los Angeles at the gate
15:16DL 2398 to New York JFK leaves the gate
21 h 50 apart on the timetable, overnight
DL 2398 leaves 21 h 50 after DL 528 arrives on the timetable: more than half a day, so not a connection we count.