MQ 4638 then AA 2539 at Miami
Tampa → Miami → Boston
Timetable, Miami time
20:51MQ 4638 from Tampa at the gate
20:15AA 2539 to Boston leaves the gate
23 h 24 apart on the timetable, overnight
AA 2539 leaves 23 h 24 after MQ 4638 arrives on the timetable: more than half a day, so not a connection we count.