UA 640 then UA 4743 at Denver
Vancouver → Denver → Salt Lake City
Timetable, Denver time
12:20UA 640 from Vancouver at the gate
08:00UA 4743 to Salt Lake City leaves the gate
19 h 40 apart on the timetable, overnight
UA 4743 leaves 19 h 40 after UA 640 arrives on the timetable: more than half a day, so not a connection we count.