FR 815 then FR 1918 at Dublin
Edinburgh → Dublin → Manchester
Timetable, Dublin time
20:05FR 815 from Edinburgh at the gate
14:25FR 1918 to Manchester leaves the gate
18 h 20 apart on the timetable, overnight
FR 1918 leaves 18 h 20 after FR 815 arrives on the timetable: more than half a day, so not a connection we count.