AA 3232 then UA 1528 at Houston
Phoenix → Houston → Detroit
Timetable, Houston time
23:54AA 3232 from Phoenix at the gate
19:04UA 1528 to Detroit leaves the gate
19 h 10 apart on the timetable, overnight
UA 1528 leaves 19 h 10 after AA 3232 arrives on the timetable: more than half a day, so not a connection we count.