DL 9941 then DL 5830 at Atlanta
Queretaro → Atlanta → Hilton Head
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
14:19DL 5830 to Hilton Head leaves the gate
18 h 36 apart on the timetable, overnight
DL 5830 leaves 18 h 36 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.