UA 1013 then DL 3704 at LAX
Denver → Los Angeles → Aspen
Timetable, Los Angeles time
13:17UA 1013 from Denver at the gate
10:35DL 3704 to Aspen leaves the gate
21 h 18 apart on the timetable, overnight
DL 3704 leaves 21 h 18 after UA 1013 arrives on the timetable: more than half a day, so not a connection we count.