MX 811 then QR 3410 at San Francisco
Cincinnati → San Francisco → San Diego
Timetable, San Francisco time
12:01MX 811 from Cincinnati at the gate
11:53QR 3410 to San Diego leaves the gate
23 h 52 apart on the timetable, overnight
QR 3410 leaves 23 h 52 after MX 811 arrives on the timetable: more than half a day, so not a connection we count.