FR 663 then EI 3402 at Dublin
Birmingham (UK) → Dublin → Donegal
Timetable, Dublin time
19:55FR 663 from Birmingham (UK) at the gate
12:55EI 3402 to Donegal leaves the gate
17 h apart on the timetable, overnight
EI 3402 leaves 17 h after FR 663 arrives on the timetable: more than half a day, so not a connection we count.