MU 589 then QF 3741 at San Francisco
Shanghai → San Francisco → San Diego
Timetable, San Francisco time
09:00MU 589 from Shanghai at the gate
07:04QF 3741 to San Diego leaves the gate
22 h 04 apart on the timetable, overnight
QF 3741 leaves 22 h 04 after MU 589 arrives on the timetable: more than half a day, so not a connection we count.