AA 6303 then NH 8407 at LAX
Vancouver → Los Angeles → Tokyo Narita
Timetable, Los Angeles time
17:03AA 6303 from Vancouver at the gate
16:40NH 8407 to Tokyo Narita leaves the gate
23 h 37 apart on the timetable, overnight
NH 8407 leaves 23 h 37 after AA 6303 arrives on the timetable: more than half a day, so not a connection we count.