UA 571 then AC 4029 at San Francisco
Atlanta → San Francisco → Austin
Timetable, San Francisco time
11:24UA 571 from Atlanta at the gatealso VA 8403, NZ 9005
11:00AC 4029 to Austin leaves the gatealso VA 8471, NZ 9119
23 h 36 apart on the timetable, overnight
AC 4029 leaves 23 h 36 after UA 571 arrives on the timetable: more than half a day, so not a connection we count.