FR 1987 then FR 204 at Dublin
Nantes → Dublin → London Stansted
Timetable, Dublin time
09:30FR 1987 from Nantes at the gate
08:20FR 204 to London Stansted leaves the gate
22 h 50 apart on the timetable, overnight
FR 204 leaves 22 h 50 after FR 1987 arrives on the timetable: more than half a day, so not a connection we count.