BJ 246 then DE 4484 at Frankfurt
Tunis → Frankfurt am Main → Prague
Timetable, Frankfurt am Main time
17:05BJ 246 from Tunis at the gate
14:30DE 4484 to Prague leaves the gate
21 h 25 apart on the timetable, overnight
DE 4484 leaves 21 h 25 after BJ 246 arrives on the timetable: more than half a day, so not a connection we count.