FR 5556 then BA 837 at Dublin
Tenerife South → Dublin → London Heathrow
Timetable, Dublin time
20:30FR 5556 from Tenerife South at the gate
19:25BA 837 to London Heathrow leaves the gate
22 h 55 apart on the timetable, overnight
BA 837 leaves 22 h 55 after FR 5556 arrives on the timetable: more than half a day, so not a connection we count.