FR 813 then EI 3402 at Dublin
Edinburgh → Dublin → Donegal
Timetable, Dublin time
15:00FR 813 from Edinburgh at the gate
12:55EI 3402 to Donegal leaves the gate
21 h 55 apart on the timetable, overnight
EI 3402 leaves 21 h 55 after FR 813 arrives on the timetable: more than half a day, so not a connection we count.