DL 5668 then DL 5837 at Boston
Baltimore → Boston → Charlotte
Timetable, Boston time
15:20DL 5668 from Baltimore at the gate
15:10DL 5837 to Charlotte leaves the gate
23 h 50 apart on the timetable, overnight
DL 5837 leaves 23 h 50 after DL 5668 arrives on the timetable: more than half a day, so not a connection we count.