AM 4431 then KL 5638 at San Francisco
Los Angeles → San Francisco → New York JFK
Timetable, San Francisco time
23:21AM 4431 from Los Angeles at the gate
22:25KL 5638 to New York JFK leaves the gate
23 h 04 apart on the timetable, overnight
KL 5638 leaves 23 h 04 after AM 4431 arrives on the timetable: more than half a day, so not a connection we count.