DL 9951 then DL 3142 at Atlanta
Queretaro → Atlanta → Nashville
Timetable, Atlanta time
20:38DL 9951 from Queretaro at the gate
14:57DL 3142 to Nashville leaves the gate
18 h 19 apart on the timetable, overnight
DL 3142 leaves 18 h 19 after DL 9951 arrives on the timetable: more than half a day, so not a connection we count.