UA 2 then JL 7555 at San Francisco
Singapore → San Francisco → Los Angeles
Timetable, San Francisco time
09:15UA 2 from Singapore at the gate
09:13JL 7555 to Los Angeles leaves the gate
23 h 58 apart on the timetable, overnight
JL 7555 leaves 23 h 58 after UA 2 arrives on the timetable: more than half a day, so not a connection we count.