AA 2230 then UA 4076 at Houston
Miami → Houston → Birmingham (Alabama)
Timetable, Houston time
23:58AA 2230 from Miami at the gate
20:10UA 4076 to Birmingham (Alabama) leaves the gate
20 h 12 apart on the timetable, overnight
UA 4076 leaves 20 h 12 after AA 2230 arrives on the timetable: more than half a day, so not a connection we count.