QF 3657 then CX 873 at San Francisco
New York JFK → San Francisco → Hong Kong
Timetable, San Francisco time
23:59QF 3657 from New York JFK at the gate
22:55CX 873 to Hong Kong leaves the gatealso OM 5873, AS 7290, AA 8931, MH 9183
22 h 56 apart on the timetable, overnight
CX 873 leaves 22 h 56 after QF 3657 arrives on the timetable: more than half a day, so not a connection we count.