L6 114 then AT 557 at Casablanca
Nouakchott → Casablanca → Lagos
Timetable, Casablanca time
19:40L6 114 from Nouakchott at the gate
12:30AT 557 to Lagos leaves the gate
16 h 50 apart on the timetable, overnight
AT 557 leaves 16 h 50 after L6 114 arrives on the timetable: more than half a day, so not a connection we count.