DL 1680 then DL 588 at Atlanta
Cincinnati → Atlanta → Mexico City
Timetable, Atlanta time
21:43DL 1680 from Cincinnati at the gate
10:06DL 588 to Mexico City leaves the gate
12 h 23 apart on the timetable, overnight
DL 588 leaves 12 h 23 after DL 1680 arrives on the timetable: more than half a day, so not a connection we count.