BA 488 then AT 961 at Barcelona
London Heathrow → Barcelona → Casablanca
Timetable, Barcelona time
19:15BA 488 from London Heathrow at the gate
19:10AT 961 to Casablanca leaves the gate
23 h 55 apart on the timetable, overnight
AT 961 leaves 23 h 55 after BA 488 arrives on the timetable: more than half a day, so not a connection we count.