AA 859 then DL 5630 at Charlotte
Nassau → Charlotte → Boston
Timetable, Charlotte time
16:51AA 859 from Nassau at the gate
14:37DL 5630 to Boston leaves the gate
21 h 46 apart on the timetable, overnight
DL 5630 leaves 21 h 46 after AA 859 arrives on the timetable: more than half a day, so not a connection we count.