FR 1987 then FR 660 at Dublin
Nantes → Dublin → Birmingham (UK)
Timetable, Dublin time
09:30FR 1987 from Nantes at the gate
07:50FR 660 to Birmingham (UK) leaves the gate
22 h 20 apart on the timetable, overnight
FR 660 leaves 22 h 20 after FR 1987 arrives on the timetable: more than half a day, so not a connection we count.