UA 33 then O3 384 at LAX
Tokyo Narita → Los Angeles → Shenzhen
Timetable, Los Angeles time
10:35UA 33 from Tokyo Narita at the gate
10:04O3 384 to Shenzhen leaves the gate
23 h 29 apart on the timetable, overnight
O3 384 leaves 23 h 29 after UA 33 arrives on the timetable: more than half a day, so not a connection we count.