DL 2270 then DL 5845 at Philadelphia
Atlanta → Philadelphia → Boston
Timetable, Philadelphia time
11:03DL 2270 from Atlanta at the gate
09:00DL 5845 to Boston leaves the gate
21 h 57 apart on the timetable, overnight
DL 5845 leaves 21 h 57 after DL 2270 arrives on the timetable: more than half a day, so not a connection we count.