SQ 34 then QF 3654 at San Francisco
Singapore → San Francisco → New York JFK
Timetable, San Francisco time
18:35SQ 34 from Singapore at the gate
07:00QF 3654 to New York JFK leaves the gate
12 h 25 apart on the timetable, overnight
QF 3654 leaves 12 h 25 after SQ 34 arrives on the timetable: more than half a day, so not a connection we count.