SK 1768 then DY 4459 at Arlanda
Prague → Stockholm → London Gatwick
Timetable, Stockholm time
21:15SK 1768 from Prague at the gate
18:20DY 4459 to London Gatwick leaves the gate
21 h 05 apart on the timetable, overnight
DY 4459 leaves 21 h 05 after SK 1768 arrives on the timetable: more than half a day, so not a connection we count.