OZ 6344 then WN 3840 at San Francisco
St Louis → San Francisco → Burbank
Timetable, San Francisco time
21:41OZ 6344 from St Louis at the gate
19:05WN 3840 to Burbank leaves the gate
21 h 24 apart on the timetable, overnight
WN 3840 leaves 21 h 24 after OZ 6344 arrives on the timetable: more than half a day, so not a connection we count.