UA 2361 then O3 384 at LAX
Chicago O'Hare → Los Angeles → Shenzhen
Timetable, Los Angeles time
09:35UA 2361 from Chicago O'Hare at the gate
04:37O3 384 to Shenzhen leaves the gate
19 h 02 apart on the timetable, overnight
O3 384 leaves 19 h 02 after UA 2361 arrives on the timetable: more than half a day, so not a connection we count.