NZ 9178 then UA 580 at San Francisco
Washington → San Francisco → Los Angeles
Timetable, San Francisco time
21:29NZ 9178 from Washington at the gate
21:20UA 580 to Los Angeles leaves the gatealso CM 1067, VA 8560, NZ 9258
23 h 51 apart on the timetable, overnight
UA 580 leaves 23 h 51 after NZ 9178 arrives on the timetable: more than half a day, so not a connection we count.