FR 157 then EI 546 at Dublin
Leeds → Dublin → Nice
Timetable, Dublin time
21:40FR 157 from Leeds at the gate
15:00EI 546 to Nice leaves the gate
17 h 20 apart on the timetable, overnight
EI 546 leaves 17 h 20 after FR 157 arrives on the timetable: more than half a day, so not a connection we count.