AV 6975 then UA 871 at San Francisco
Vancouver → San Francisco → Taipei
Timetable, San Francisco time
13:51AV 6975 from Vancouver at the gate
13:35UA 871 to Taipei leaves the gate
23 h 44 apart on the timetable, overnight
UA 871 leaves 23 h 44 after AV 6975 arrives on the timetable: more than half a day, so not a connection we count.