DL 1993 then DL 9963 at Atlanta
Washington → Atlanta → Queretaro
Timetable, Atlanta time
16:56DL 1993 from Washington at the gate
09:30DL 9963 to Queretaro leaves the gate
16 h 34 apart on the timetable, overnight
DL 9963 leaves 16 h 34 after DL 1993 arrives on the timetable: more than half a day, so not a connection we count.