AA 9909 then WN 590 at Phoenix
Salt Lake City → Phoenix → Nashville
Timetable, Phoenix time
14:30AA 9909 from Salt Lake City at the gate
11:45WN 590 to Nashville leaves the gate
21 h 15 apart on the timetable, overnight
WN 590 leaves 21 h 15 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.