DL 1680 then DL 2990 at Atlanta
Cincinnati → Atlanta → Jacksonville
Timetable, Atlanta time
21:43DL 1680 from Cincinnati at the gate
13:46DL 2990 to Jacksonville leaves the gate
16 h 03 apart on the timetable, overnight
DL 2990 leaves 16 h 03 after DL 1680 arrives on the timetable: more than half a day, so not a connection we count.