UA 3925 then CA 7407 at San Francisco
Denver → San Francisco → Austin
Timetable, San Francisco time
12:52UA 3925 from Denver at the gate
12:06CA 7407 to Austin leaves the gate
23 h 14 apart on the timetable, overnight
CA 7407 leaves 23 h 14 after UA 3925 arrives on the timetable: more than half a day, so not a connection we count.