UA 1912 then WN 4313 at Denver
Los Angeles → Denver → Burbank
Timetable, Denver time
12:17UA 1912 from Los Angeles at the gate
12:15WN 4313 to Burbank leaves the gate
23 h 58 apart on the timetable, overnight
WN 4313 leaves 23 h 58 after UA 1912 arrives on the timetable: more than half a day, so not a connection we count.