DL 2925 then DL 727 at Atlanta
Mobile → Atlanta → Washington National
Timetable, Atlanta time
20:35DL 2925 from Mobile at the gate
19:59DL 727 to Washington National leaves the gate
23 h 24 apart on the timetable, overnight
DL 727 leaves 23 h 24 after DL 2925 arrives on the timetable: more than half a day, so not a connection we count.