LL 5107 then W4 6316 at Barcelona
Prague → Barcelona → Milan
Timetable, Barcelona time
13:15LL 5107 from Prague at the gate
13:10W4 6316 to Milan leaves the gate
23 h 55 apart on the timetable, overnight
W4 6316 leaves 23 h 55 after LL 5107 arrives on the timetable: more than half a day, so not a connection we count.