AA 644 then AA 2391 at Phoenix
Tampa → Phoenix → Atlanta
Timetable, Phoenix time
20:50AA 644 from Tampa at the gate
16:55AA 2391 to Atlanta leaves the gate
20 h 05 apart on the timetable, overnight
AA 2391 leaves 20 h 05 after AA 644 arrives on the timetable: more than half a day, so not a connection we count.