On the basis of an examination of Kant's correspondence with Mendelssohn, 1766-1770, I argue that already in 1770 Kant had before him a decisive refutation of the view that time is imposed by the mind on its representations, and that Kant did not hold any such view of the subjectivity of time in his later work. Kant's mature view is that time is subjective only in the sense that it is the manner in which the empirically observable subject receives sensory (...) matter, not in the sense that the subject actually produces this manner of receptivity. (shrink)