AA 636 then AA 1594 at Phoenix
Miami → Phoenix → Austin
Timetable, Phoenix time
14:01AA 636 from Miami at the gate
13:58AA 1594 to Austin leaves the gate
23 h 57 apart on the timetable, overnight
AA 1594 leaves 23 h 57 after AA 636 arrives on the timetable: more than half a day, so not a connection we count.