UA 5355 then UA 1963 at Denver
Salt Lake City → Denver → Salt Lake City
Timetable, Denver time
12:24UA 5355 from Salt Lake City at the gate
11:52UA 1963 to Salt Lake City leaves the gate
23 h 28 apart on the timetable, overnight
UA 1963 leaves 23 h 28 after UA 5355 arrives on the timetable: more than half a day, so not a connection we count.