DL 9979 then DL 1868 at Atlanta
Detroit → Atlanta → Tallahassee
Timetable, Atlanta time
15:41DL 9979 from Detroit at the gate
15:18DL 1868 to Tallahassee leaves the gate
23 h 37 apart on the timetable, overnight
DL 1868 leaves 23 h 37 after DL 9979 arrives on the timetable: more than half a day, so not a connection we count.