There is a land where every inhabitant is either a day-knight or a night-knight. Day-knights tell the truth in the day and lie at night. Night-knights lie in the day and tell the truth at night.
There are two inhabitants A and B, one of whose name is Santos and the name of the other is Shane.
It is known that, Shane is a day knight and Santos is a night knight.
A says that B is Shane.
Is it day or night?