FR 813 then BA 835 at Dublin
Edinburgh → Dublin → London Heathrow
Timetable, Dublin time
18:15FR 813 from Edinburgh at the gate
17:55BA 835 to London Heathrow leaves the gate
23 h 40 apart on the timetable, overnight
BA 835 leaves 23 h 40 after FR 813 arrives on the timetable: more than half a day, so not a connection we count.