AT 223 then L6 115 at Casablanca
Moscow Sheremetyevo → Casablanca → Nouakchott
Timetable, Casablanca time
04:50AT 223 from Moscow Sheremetyevo at the gate
20:30L6 115 to Nouakchott leaves the gate
15 h 40 apart on the timetable
L6 115 leaves 15 h 40 after AT 223 arrives on the timetable: more than half a day, so not a connection we count.