DL 523 then UA 1853 at LAX
Detroit → Los Angeles → San Francisco
Timetable, Los Angeles time
10:28DL 523 from Detroit at the gate
22:35UA 1853 to San Francisco leaves the gate
12 h 07 apart on the timetable
UA 1853 leaves 12 h 07 after DL 523 arrives on the timetable: more than half a day, so not a connection we count.