DL 67 then DL 2398 at Atlanta
Rome → Atlanta → New York JFK
Timetable, Atlanta time
18:54DL 67 from Rome at the gate
15:16DL 2398 to New York JFK leaves the gate
20 h 22 apart on the timetable, overnight
DL 2398 leaves 20 h 22 after DL 67 arrives on the timetable: more than half a day, so not a connection we count.