TP 1929 then FR 1768 at Lisbon
Porto → Lisbon → Valencia
Timetable, Lisbon time
15:40TP 1929 from Porto at the gate
12:25FR 1768 to Valencia leaves the gate
20 h 45 apart on the timetable, overnight
FR 1768 leaves 20 h 45 after TP 1929 arrives on the timetable: more than half a day, so not a connection we count.