AA 644 then AA 1804 at Phoenix
Tampa → Phoenix → Tampa
Timetable, Phoenix time
20:50AA 644 from Tampa at the gate
17:21AA 1804 to Tampa leaves the gate
20 h 31 apart on the timetable, overnight
AA 1804 leaves 20 h 31 after AA 644 arrives on the timetable: more than half a day, so not a connection we count.