UA 582 then AV 2024 at San Francisco
Boston → San Francisco → Reno
Timetable, San Francisco time
12:09UA 582 from Boston at the gate
08:10AV 2024 to Reno leaves the gate
20 h 01 apart on the timetable, overnight
AV 2024 leaves 20 h 01 after UA 582 arrives on the timetable: more than half a day, so not a connection we count.