FR 2767 then FR 572 at Madrid
Prague → Madrid → Porto
Timetable, Madrid time
17:45FR 2767 from Prague at the gate
16:40FR 572 to Porto leaves the gate
22 h 55 apart on the timetable, overnight
FR 572 leaves 22 h 55 after FR 2767 arrives on the timetable: more than half a day, so not a connection we count.