DL 9941 then DL 1942 at Atlanta
Queretaro → Atlanta → Memphis
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
14:10DL 1942 to Memphis leaves the gate
18 h 27 apart on the timetable, overnight
DL 1942 leaves 18 h 27 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.