DL 587 then DL 9963 at Atlanta
Mexico City → Atlanta → Queretaro
Timetable, Atlanta time
18:28DL 587 from Mexico City at the gate
09:30DL 9963 to Queretaro leaves the gate
15 h 02 apart on the timetable, overnight
DL 9963 leaves 15 h 02 after DL 587 arrives on the timetable: more than half a day, so not a connection we count.