FR 813 then BA 837 at Dublin
Edinburgh → Dublin → London Heathrow
Timetable, Dublin time
21:00FR 813 from Edinburgh at the gate
19:25BA 837 to London Heathrow leaves the gate
22 h 25 apart on the timetable, overnight
BA 837 leaves 22 h 25 after FR 813 arrives on the timetable: more than half a day, so not a connection we count.