AF 8883 then NZ 4612 at San Francisco
Los Angeles → San Francisco → Vancouver
Timetable, San Francisco time
21:34AF 8883 from Los Angeles at the gate
16:55NZ 4612 to Vancouver leaves the gatealso UA 8506
19 h 21 apart on the timetable, overnight
NZ 4612 leaves 19 h 21 after AF 8883 arrives on the timetable: more than half a day, so not a connection we count.