AA 3232 then UA 2224 at Houston
Phoenix → Houston → Washington National
Timetable, Houston time
23:54AA 3232 from Phoenix at the gate
19:59UA 2224 to Washington National leaves the gate
20 h 05 apart on the timetable, overnight
UA 2224 leaves 20 h 05 after AA 3232 arrives on the timetable: more than half a day, so not a connection we count.