UA 3851 then OO 356 at San Francisco
Rio De Janeiro → San Francisco → Reno
Timetable, San Francisco time
17:41UA 3851 from Rio De Janeiro at the gate
16:31OO 356 to Reno leaves the gate
22 h 50 apart on the timetable, overnight
OO 356 leaves 22 h 50 after UA 3851 arrives on the timetable: more than half a day, so not a connection we count.