DL 775 then DL 5175 at Atlanta
Cleveland → Atlanta → Knoxville
Timetable, Atlanta time
17:06DL 775 from Cleveland at the gate
16:35DL 5175 to Knoxville leaves the gate
23 h 29 apart on the timetable, overnight
DL 5175 leaves 23 h 29 after DL 775 arrives on the timetable: more than half a day, so not a connection we count.