DL 1223 then DL 836 at Atlanta
Cincinnati → Atlanta → Phoenix
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
16:25DL 836 to Phoenix leaves the gate
23 h 52 apart on the timetable, overnight
DL 836 leaves 23 h 52 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.