UA 33 then B6 1524 at LAX
Tokyo Narita → Los Angeles → New York JFK
Timetable, Los Angeles time
10:35UA 33 from Tokyo Narita at the gate
22:40B6 1524 to New York JFK leaves the gate
12 h 05 apart on the timetable
B6 1524 leaves 12 h 05 after UA 33 arrives on the timetable: more than half a day, so not a connection we count.