UA 3926 then GF 4166 at San Francisco
Newark → San Francisco → Los Angeles
Timetable, San Francisco time
22:56UA 3926 from Newark at the gate
16:10GF 4166 to Los Angeles leaves the gatealso BA 6507
17 h 14 apart on the timetable, overnight
GF 4166 leaves 17 h 14 after UA 3926 arrives on the timetable: more than half a day, so not a connection we count.