DL 5052 then DL 5595 at JFK
Charlotte → New York → Washington
Timetable, New York time
12:40DL 5052 from Charlotte at the gate
10:25DL 5595 to Washington leaves the gate
21 h 45 apart on the timetable, overnight
DL 5595 leaves 21 h 45 after DL 5052 arrives on the timetable: more than half a day, so not a connection we count.