AA 3232 then UA 101 at Houston
Phoenix → Houston → Sydney
Timetable, Houston time
23:54AA 3232 from Phoenix at the gate
20:25UA 101 to Sydney leaves the gate
20 h 31 apart on the timetable, overnight
UA 101 leaves 20 h 31 after AA 3232 arrives on the timetable: more than half a day, so not a connection we count.