WN 191 then UA 869 at San Francisco
St Louis → San Francisco → Hong Kong
Timetable, San Francisco time
12:25WN 191 from St Louis at the gate
11:45UA 869 to Hong Kong leaves the gate
23 h 20 apart on the timetable, overnight
UA 869 leaves 23 h 20 after WN 191 arrives on the timetable: more than half a day, so not a connection we count.