AA 438 then 8C 1231 at Miami
Nassau → Miami → San Juan
Timetable, Miami time
20:02AA 438 from Nassau at the gate
15:008C 1231 to San Juan leaves the gate
18 h 58 apart on the timetable, overnight
8C 1231 leaves 18 h 58 after AA 438 arrives on the timetable: more than half a day, so not a connection we count.