In this paper we offer a critical account of Aristotelian theory of time. After a brief presentation of the main views of Aristotle on the infinite, we focus the attention to the status of points with respect to the potentiality-actuality distinction. Then we address Aristotle’s views on time on the basis of the Aristotelian notion of continuity. We construe the “nows” as potentialities awaiting to be actualized. We show that it is the intervention of an agent, who, through finitely many (...) unitary mental acts of noticing or perceiving, guarantees the actualization of particular “nows”, constructs or brings into existence time intervals and through their comparison measures them, so producing what Aristotle calls time. (shrink)