BA 834 then FR 816 at Dublin
London Heathrow → Dublin → Edinburgh
Timetable, Dublin time
17:45BA 834 from London Heathrow at the gate
13:55FR 816 to Edinburgh leaves the gate
20 h 10 apart on the timetable, overnight
FR 816 leaves 20 h 10 after BA 834 arrives on the timetable: more than half a day, so not a connection we count.