BA 347 then EI 177 at Heathrow
Nice → London → Dublin
Timetable, London time
19:50BA 347 from Nice at the gate
19:45EI 177 to Dublin leaves the gate
23 h 55 apart on the timetable, overnight
EI 177 leaves 23 h 55 after BA 347 arrives on the timetable: more than half a day, so not a connection we count.