DL 2925 then DL 2571 at Atlanta
Mobile → Atlanta → Knoxville
Timetable, Atlanta time
20:35DL 2925 from Mobile at the gate
16:25DL 2571 to Knoxville leaves the gate
19 h 50 apart on the timetable, overnight
DL 2571 leaves 19 h 50 after DL 2925 arrives on the timetable: more than half a day, so not a connection we count.