CS 891 then BA 715 at Zurich
Larnaca → Zurich → London Heathrow
Timetable, Zurich time
14:50CS 891 from Larnaca at the gate
14:00BA 715 to London Heathrow leaves the gate
23 h 10 apart on the timetable, overnight
BA 715 leaves 23 h 10 after CS 891 arrives on the timetable: more than half a day, so not a connection we count.