DL 2944 then DL 9963 at Atlanta
Columbia → Atlanta → Queretaro
Timetable, Atlanta time
15:08DL 2944 from Columbia at the gate
09:30DL 9963 to Queretaro leaves the gate
18 h 22 apart on the timetable, overnight
DL 9963 leaves 18 h 22 after DL 2944 arrives on the timetable: more than half a day, so not a connection we count.