DL 725 then DL 9963 at Atlanta
San Diego → Atlanta → Queretaro
Timetable, Atlanta time
18:13DL 725 from San Diego at the gate
09:30DL 9963 to Queretaro leaves the gate
15 h 17 apart on the timetable, overnight
DL 9963 leaves 15 h 17 after DL 725 arrives on the timetable: more than half a day, so not a connection we count.