BJ 246 then KL 1818 at Frankfurt
Tunis → Frankfurt am Main → Amsterdam
Timetable, Frankfurt am Main time
17:05BJ 246 from Tunis at the gate
11:45KL 1818 to Amsterdam leaves the gate
18 h 40 apart on the timetable, overnight
KL 1818 leaves 18 h 40 after BJ 246 arrives on the timetable: more than half a day, so not a connection we count.