DL 1223 then DL 592 at Atlanta
Cincinnati → Atlanta → Cancún
Timetable, Atlanta time
16:33DL 1223 from Cincinnati at the gate
12:25DL 592 to Cancún leaves the gate
19 h 52 apart on the timetable, overnight
DL 592 leaves 19 h 52 after DL 1223 arrives on the timetable: more than half a day, so not a connection we count.