EI 3403 then FR 814 at Dublin
Donegal → Dublin → Edinburgh
Timetable, Dublin time
15:25EI 3403 from Donegal at the gate
07:30FR 814 to Edinburgh leaves the gate
16 h 05 apart on the timetable, overnight
FR 814 leaves 16 h 05 after EI 3403 arrives on the timetable: more than half a day, so not a connection we count.