F9 4236 then WN 1817 at Denver
Salt Lake City → Denver → San Francisco
Timetable, Denver time
17:51F9 4236 from Salt Lake City at the gate
17:35WN 1817 to San Francisco leaves the gate
23 h 44 apart on the timetable, overnight
WN 1817 leaves 23 h 44 after F9 4236 arrives on the timetable: more than half a day, so not a connection we count.