EI 451 then FR 5021 at Dublin
Napoli → Dublin → Pisa
Timetable, Dublin time
15:30EI 451 from Napoli at the gate
06:35FR 5021 to Pisa leaves the gate
15 h 05 apart on the timetable, overnight
FR 5021 leaves 15 h 05 after EI 451 arrives on the timetable: more than half a day, so not a connection we count.