DY 3581 then SK 667 at Copenhagen
Prague → Copenhagen → Stuttgart
Timetable, Copenhagen time
15:05DY 3581 from Prague at the gate
12:50SK 667 to Stuttgart leaves the gate
21 h 45 apart on the timetable, overnight
SK 667 leaves 21 h 45 after DY 3581 arrives on the timetable: more than half a day, so not a connection we count.