CM 2458 then AV 2354 at San Francisco
Sacramento → San Francisco → Denver
Timetable, San Francisco time
18:57CM 2458 from Sacramento at the gate
16:24AV 2354 to Denver leaves the gate
21 h 27 apart on the timetable, overnight
AV 2354 leaves 21 h 27 after CM 2458 arrives on the timetable: more than half a day, so not a connection we count.