CM 2458 then UA 2409 at San Francisco
Sacramento → San Francisco → Los Angeles
Timetable, San Francisco time
20:00CM 2458 from Sacramento at the gate
19:51UA 2409 to Los Angeles leaves the gatealso VA 8054, NZ 9251
23 h 51 apart on the timetable, overnight
UA 2409 leaves 23 h 51 after CM 2458 arrives on the timetable: more than half a day, so not a connection we count.