AA 5984 then AA 2098 at Charlotte
Florence → Charlotte → San Juan
Timetable, Charlotte time
16:44AA 5984 from Florence at the gate
16:35AA 2098 to San Juan leaves the gate
23 h 51 apart on the timetable, overnight
AA 2098 leaves 23 h 51 after AA 5984 arrives on the timetable: more than half a day, so not a connection we count.