AA 604 then KX 123 at Miami
Washington National → Miami → Grand Cayman
Timetable, Miami time
12:14AA 604 from Washington National at the gate
11:50KX 123 to Grand Cayman leaves the gate
23 h 36 apart on the timetable, overnight
KX 123 leaves 23 h 36 after AA 604 arrives on the timetable: more than half a day, so not a connection we count.