AA 1221 then DL 747 at JFK
Charlotte → New York → Los Angeles
Timetable, New York time
14:30AA 1221 from Charlotte at the gate
11:00DL 747 to Los Angeles leaves the gate
20 h 30 apart on the timetable, overnight
DL 747 leaves 20 h 30 after AA 1221 arrives on the timetable: more than half a day, so not a connection we count.