SK 770 then DY 2063 at Copenhagen
Prague → Copenhagen → Riga
Timetable, Copenhagen time
16:30SK 770 from Prague at the gate
11:55DY 2063 to Riga leaves the gate
19 h 25 apart on the timetable, overnight
DY 2063 leaves 19 h 25 after SK 770 arrives on the timetable: more than half a day, so not a connection we count.