OZ 6344 then UA 809 at San Francisco
St Louis → San Francisco → Manila
Timetable, San Francisco time
21:41OZ 6344 from St Louis at the gate
14:05UA 809 to Manila leaves the gate
16 h 24 apart on the timetable, overnight
UA 809 leaves 16 h 24 after OZ 6344 arrives on the timetable: more than half a day, so not a connection we count.