UA 796 then OZ 6345 at San Francisco
Washington → San Francisco → Reno
Timetable, San Francisco time
19:24UA 796 from Washington at the gatealso VA 8391, NZ 9179
16:31OZ 6345 to Reno leaves the gate
21 h 07 apart on the timetable, overnight
OZ 6345 leaves 21 h 07 after UA 796 arrives on the timetable: more than half a day, so not a connection we count.