DL 2925 then DL 519 at Atlanta
Mobile → Atlanta → Denver
Timetable, Atlanta time
20:35DL 2925 from Mobile at the gate
17:09DL 519 to Denver leaves the gate
20 h 34 apart on the timetable, overnight
DL 519 leaves 20 h 34 after DL 2925 arrives on the timetable: more than half a day, so not a connection we count.