As a preliminary to Aristotle’s account of time, it is necessary to understand his views on change and on indivisibles. He has an account of change (in terms of actuality and potentiality) that makes no reference to time. His view of indivisibles is important because he thinks that the now is indivisible. It is argued that, according to his view, an indivisible is a boundary of, or potential division in, some continuum. An indivisible is, then, ontologically dependent on the continuum that it (potentially) divides.
Keywords: change, now, continuum, indivisible, potential division