AA 6284 then UA 5398 at LAX
Denver → Los Angeles → Monterey
Timetable, Los Angeles time
08:52AA 6284 from Denver at the gate
21:05UA 5398 to Monterey leaves the gate
12 h 13 apart on the timetable
UA 5398 leaves 12 h 13 after AA 6284 arrives on the timetable: more than half a day, so not a connection we count.