AV 6975 then QF 3656 at San Francisco
Vancouver → San Francisco → New York JFK
Timetable, San Francisco time
16:06AV 6975 from Vancouver at the gate
13:50QF 3656 to New York JFK leaves the gate
21 h 44 apart on the timetable, overnight
QF 3656 leaves 21 h 44 after AV 6975 arrives on the timetable: more than half a day, so not a connection we count.