BY 491 then U2 8709 at Gatwick
Enfidha → London → Marrakesh
Timetable, London time
13:40BY 491 from Enfidha at the gate
10:05U2 8709 to Marrakesh leaves the gate
20 h 25 apart on the timetable, overnight
U2 8709 leaves 20 h 25 after BY 491 arrives on the timetable: more than half a day, so not a connection we count.