AA 1794 then AA 2776 at Charlotte
Nashville → Charlotte → Boston
Timetable, Charlotte time
09:02AA 1794 from Nashville at the gate
08:55AA 2776 to Boston leaves the gate
23 h 53 apart on the timetable, overnight
AA 2776 leaves 23 h 53 after AA 1794 arrives on the timetable: more than half a day, so not a connection we count.