CM 2458 then UA 1835 at San Francisco
Sacramento → San Francisco → Denver
Timetable, San Francisco time
20:00CM 2458 from Sacramento at the gate
16:24UA 1835 to Denver leaves the gatealso AC 4868, EK 6360, VA 8340, NZ 9061
20 h 24 apart on the timetable, overnight
UA 1835 leaves 20 h 24 after CM 2458 arrives on the timetable: more than half a day, so not a connection we count.