FR 1987 then FR 7152 at Dublin
Nantes → Dublin → Santander
Timetable, Dublin time
09:45FR 1987 from Nantes at the gate
06:05FR 7152 to Santander leaves the gate
20 h 20 apart on the timetable, overnight
FR 7152 leaves 20 h 20 after FR 1987 arrives on the timetable: more than half a day, so not a connection we count.