DL 9941 then DL 1930 at Atlanta
Queretaro → Atlanta → Memphis
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
16:43DL 1930 to Memphis leaves the gate
21 h apart on the timetable, overnight
DL 1930 leaves 21 h after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.