FR 819 then EI 3402 at Dublin
Edinburgh → Dublin → Donegal
Timetable, Dublin time
16:55FR 819 from Edinburgh at the gate
12:55EI 3402 to Donegal leaves the gate
20 h apart on the timetable, overnight
EI 3402 leaves 20 h after FR 819 arrives on the timetable: more than half a day, so not a connection we count.