F9 2350 then UA 1256 at Denver
Las Vegas → Denver → San Jose (California)
Timetable, Denver time
14:41F9 2350 from Las Vegas at the gate
11:35UA 1256 to San Jose (California) leaves the gate
20 h 54 apart on the timetable, overnight
UA 1256 leaves 20 h 54 after F9 2350 arrives on the timetable: more than half a day, so not a connection we count.