DL 609 then DL 9960 at Atlanta
Cancún → Atlanta → CWF
Timetable, Atlanta time
10:55DL 609 from Cancún at the gate
08:00DL 9960 to CWF leaves the gate
21 h 05 apart on the timetable, overnight
DL 9960 leaves 21 h 05 after DL 609 arrives on the timetable: more than half a day, so not a connection we count.