DL 801 then DL 1692 at Atlanta
Baltimore → Atlanta → Philadelphia
Timetable, Atlanta time
14:25DL 801 from Baltimore at the gate
14:16DL 1692 to Philadelphia leaves the gate
23 h 51 apart on the timetable, overnight
DL 1692 leaves 23 h 51 after DL 801 arrives on the timetable: more than half a day, so not a connection we count.