FR 815 then EI 133 at Dublin
Edinburgh → Dublin → Boston
Timetable, Dublin time
14:15FR 815 from Edinburgh at the gate
11:45EI 133 to Boston leaves the gate
21 h 30 apart on the timetable, overnight
EI 133 leaves 21 h 30 after FR 815 arrives on the timetable: more than half a day, so not a connection we count.