UA 2184 then KJ 286 at LAX
Las Vegas → Los Angeles → San Francisco
Timetable, Los Angeles time
15:21UA 2184 from Las Vegas at the gate
03:35KJ 286 to San Francisco leaves the gate
12 h 14 apart on the timetable, overnight
KJ 286 leaves 12 h 14 after UA 2184 arrives on the timetable: more than half a day, so not a connection we count.