FR 3040 then FR 3035 at Barcelona
Prague → Barcelona → Krakow
Timetable, Barcelona time
21:15FR 3040 from Prague at the gate
09:35FR 3035 to Krakow leaves the gate
12 h 20 apart on the timetable, overnight
FR 3035 leaves 12 h 20 after FR 3040 arrives on the timetable: more than half a day, so not a connection we count.