SN 3721 then FR 1206 at Madrid
Brussels → Madrid → Venezia
Timetable, Madrid time
11:45SN 3721 from Brussels at the gate
09:30FR 1206 to Venezia leaves the gate
21 h 45 apart on the timetable, overnight
FR 1206 leaves 21 h 45 after SN 3721 arrives on the timetable: more than half a day, so not a connection we count.