EI 203 then FR 1986 at Dublin
Manchester → Dublin → Nantes
Timetable, Dublin time
09:15EI 203 from Manchester at the gate
05:45FR 1986 to Nantes leaves the gate
20 h 30 apart on the timetable, overnight
FR 1986 leaves 20 h 30 after EI 203 arrives on the timetable: more than half a day, so not a connection we count.