QF 3657 then UA 877 at San Francisco
New York JFK → San Francisco → Hong Kong
Timetable, San Francisco time
23:59QF 3657 from New York JFK at the gate
23:15UA 877 to Hong Kong leaves the gate
23 h 16 apart on the timetable, overnight
UA 877 leaves 23 h 16 after QF 3657 arrives on the timetable: more than half a day, so not a connection we count.