UA 2238 then AA 3176 at LAX
Newark → Los Angeles → San Francisco
Timetable, Los Angeles time
19:16UA 2238 from Newark at the gate
12:37AA 3176 to San Francisco leaves the gate
17 h 21 apart on the timetable, overnight
AA 3176 leaves 17 h 21 after UA 2238 arrives on the timetable: more than half a day, so not a connection we count.