EK 3 then EI 723 at Heathrow
Dubai → London → Cork
Timetable, London time
18:20EK 3 from Dubai at the gate
18:05EI 723 to Cork leaves the gate
23 h 45 apart on the timetable, overnight
EI 723 leaves 23 h 45 after EK 3 arrives on the timetable: more than half a day, so not a connection we count.