UA 3772 then OZ 6345 at San Francisco
Las Vegas → San Francisco → Reno
Timetable, San Francisco time
22:05UA 3772 from Las Vegas at the gate
16:31OZ 6345 to Reno leaves the gate
18 h 26 apart on the timetable, overnight
OZ 6345 leaves 18 h 26 after UA 3772 arrives on the timetable: more than half a day, so not a connection we count.