FR 1917 then EI 184 at Dublin
Manchester → Dublin → London Heathrow
Timetable, Dublin time
23:15FR 1917 from Manchester at the gate
19:45EI 184 to London Heathrow leaves the gate
20 h 30 apart on the timetable, overnight
EI 184 leaves 20 h 30 after FR 1917 arrives on the timetable: more than half a day, so not a connection we count.