WN 191 then AF 8943 at San Francisco
St Louis → San Francisco → Atlanta
Timetable, San Francisco time
12:25WN 191 from St Louis at the gate
11:38AF 8943 to Atlanta leaves the gate
23 h 13 apart on the timetable, overnight
AF 8943 leaves 23 h 13 after WN 191 arrives on the timetable: more than half a day, so not a connection we count.