CX 3272 then DL 598 at Atlanta
Miami → Atlanta → Cancún
Timetable, Atlanta time
12:21CX 3272 from Miami at the gate
11:02DL 598 to Cancún leaves the gate
22 h 41 apart on the timetable, overnight
DL 598 leaves 22 h 41 after CX 3272 arrives on the timetable: more than half a day, so not a connection we count.