FR 5564 then BA 837 at Dublin
Glasgow → Dublin → London Heathrow
Timetable, Dublin time
23:25FR 5564 from Glasgow at the gate
19:25BA 837 to London Heathrow leaves the gate
20 h apart on the timetable, overnight
BA 837 leaves 20 h after FR 5564 arrives on the timetable: more than half a day, so not a connection we count.