UA 225 then UA 580 at San Francisco
Philadelphia → San Francisco → Los Angeles
Timetable, San Francisco time
21:43UA 225 from Philadelphia at the gatealso VA 8238, NZ 9366
21:20UA 580 to Los Angeles leaves the gatealso CM 1067, VA 8560, NZ 9258
23 h 37 apart on the timetable, overnight
UA 580 leaves 23 h 37 after UA 225 arrives on the timetable: more than half a day, so not a connection we count.