B6 1520 then DL 747 at JFK
Atlanta → New York → Los Angeles
Timetable, New York time
12:30B6 1520 from Atlanta at the gate
11:00DL 747 to Los Angeles leaves the gate
22 h 30 apart on the timetable, overnight
DL 747 leaves 22 h 30 after B6 1520 arrives on the timetable: more than half a day, so not a connection we count.