BA 641 then EI 725 at Heathrow
Athens → London → Cork
Timetable, London time
09:50BA 641 from Athens at the gate
22:05EI 725 to Cork leaves the gate
12 h 15 apart on the timetable
EI 725 leaves 12 h 15 after BA 641 arrives on the timetable: more than half a day, so not a connection we count.