DL 9941 then DL 1323 at Atlanta
Queretaro → Atlanta → Miami
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
14:02DL 1323 to Miami leaves the gate
18 h 19 apart on the timetable, overnight
DL 1323 leaves 18 h 19 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.