UA 2 then WN 4357 at San Francisco
Singapore → San Francisco → Austin
Timetable, San Francisco time
09:15UA 2 from Singapore at the gate
09:05WN 4357 to Austin leaves the gate
23 h 50 apart on the timetable, overnight
WN 4357 leaves 23 h 50 after UA 2 arrives on the timetable: more than half a day, so not a connection we count.