AA 839 then AA 2121 at Phoenix
Detroit → Phoenix → Reno
Timetable, Phoenix time
09:33AA 839 from Detroit at the gate
08:16AA 2121 to Reno leaves the gate
22 h 43 apart on the timetable, overnight
AA 2121 leaves 22 h 43 after AA 839 arrives on the timetable: more than half a day, so not a connection we count.