EI 3373 then EI 3554 at Dublin
Inverness → Dublin → Edinburgh
Timetable, Dublin time
18:20EI 3373 from Inverness at the gate
15:30EI 3554 to Edinburgh leaves the gate
21 h 10 apart on the timetable, overnight
EI 3554 leaves 21 h 10 after EI 3373 arrives on the timetable: more than half a day, so not a connection we count.