UA 862 then JL 7553 at San Francisco
Hong Kong → San Francisco → Los Angeles
Timetable, San Francisco time
07:05UA 862 from Hong Kong at the gate
07:00JL 7553 to Los Angeles leaves the gate
23 h 55 apart on the timetable, overnight
JL 7553 leaves 23 h 55 after UA 862 arrives on the timetable: more than half a day, so not a connection we count.