WN 3534 then WN 261 at Atlanta
Pittsburgh → Atlanta → Denver
Timetable, Atlanta time
18:45WN 3534 from Pittsburgh at the gate
17:35WN 261 to Denver leaves the gate
22 h 50 apart on the timetable, overnight
WN 261 leaves 22 h 50 after WN 3534 arrives on the timetable: more than half a day, so not a connection we count.