WN 209 then WN 536 at Denver
St Louis → Denver → Oakland
Timetable, Denver time
18:50WN 209 from St Louis at the gate
15:35WN 536 to Oakland leaves the gate
20 h 45 apart on the timetable, overnight
WN 536 leaves 20 h 45 after WN 209 arrives on the timetable: more than half a day, so not a connection we count.