W6 1175 then W6 4406 at Barcelona
Katowice → Barcelona → Sofia
Timetable, Barcelona time
22:25W6 1175 from Katowice at the gate
19:40W6 4406 to Sofia leaves the gate
21 h 15 apart on the timetable, overnight
W6 4406 leaves 21 h 15 after W6 1175 arrives on the timetable: more than half a day, so not a connection we count.