AF 6876 then AC 4370 at San Francisco
New York JFK → San Francisco → Reno
Timetable, San Francisco time
21:01AF 6876 from New York JFK at the gate
18:55AC 4370 to Reno leaves the gate
21 h 54 apart on the timetable, overnight
AC 4370 leaves 21 h 54 after AF 6876 arrives on the timetable: more than half a day, so not a connection we count.