DL 9941 then DL 2857 at Atlanta
Queretaro → Atlanta → Harrisburg
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
15:47DL 2857 to Harrisburg leaves the gate
20 h 04 apart on the timetable, overnight
DL 2857 leaves 20 h 04 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.