UA 3772 then OZ 6522 at San Francisco
Las Vegas → San Francisco → Salt Lake City
Timetable, San Francisco time
22:05UA 3772 from Las Vegas at the gate
18:25OZ 6522 to Salt Lake City leaves the gate
20 h 20 apart on the timetable, overnight
OZ 6522 leaves 20 h 20 after UA 3772 arrives on the timetable: more than half a day, so not a connection we count.