UA 1954 then UA 2374 at San Francisco
Reno → San Francisco → Phoenix
Timetable, San Francisco time
07:28UA 1954 from Reno at the gatealso AC 4371, NZ 9581
07:05UA 2374 to Phoenix leaves the gatealso AC 5296, NZ 9372
23 h 37 apart on the timetable, overnight
UA 2374 leaves 23 h 37 after UA 1954 arrives on the timetable: more than half a day, so not a connection we count.