UA 5935 then UA 6000 at Denver
Salt Lake City → Denver → Tucson
Timetable, Denver time
20:03UA 5935 from Salt Lake City at the gate
13:45UA 6000 to Tucson leaves the gate
17 h 42 apart on the timetable, overnight
UA 6000 leaves 17 h 42 after UA 5935 arrives on the timetable: more than half a day, so not a connection we count.