AA 451 then AA 6436 at Phoenix
Cleveland → Phoenix → Tucson
Timetable, Phoenix time
09:33AA 451 from Cleveland at the gate
21:50AA 6436 to Tucson leaves the gate
12 h 17 apart on the timetable
AA 6436 leaves 12 h 17 after AA 451 arrives on the timetable: more than half a day, so not a connection we count.