FR 1917 then EI 178 at Dublin
Manchester → Dublin → London Heathrow
Timetable, Dublin time
23:25FR 1917 from Manchester at the gate
18:30EI 178 to London Heathrow leaves the gate
19 h 05 apart on the timetable, overnight
EI 178 leaves 19 h 05 after FR 1917 arrives on the timetable: more than half a day, so not a connection we count.