AT 973 then L6 115 at Casablanca
Madrid → Casablanca → Nouakchott
Timetable, Casablanca time
13:45AT 973 from Madrid at the gate
10:10L6 115 to Nouakchott leaves the gate
20 h 25 apart on the timetable, overnight
L6 115 leaves 20 h 25 after AT 973 arrives on the timetable: more than half a day, so not a connection we count.