FR 3141 then FR 1786 at Barcelona
Luxembourg → Barcelona → Vilnius
Timetable, Barcelona time
11:10FR 3141 from Luxembourg at the gate
11:05FR 1786 to Vilnius leaves the gate
23 h 55 apart on the timetable, overnight
FR 1786 leaves 23 h 55 after FR 3141 arrives on the timetable: more than half a day, so not a connection we count.