This chapter examines Augustine’s discussion of time in Book 11. The contrast between eternity, in which there is no succession or change, and time, which is nothing but succession and change, is a crucial first step. Augustine uses this contrast to distinguish between ordinary utterances and God’s creative Word, the coeternal Son. Time is itself created, so there is no sense in asking what God was doing before he created, though Augustine’s understanding of the relationship between time and eternity raises difficult philosophical questions that Augustine himself does not address, though recent philosophers of religion have done so. Augustine appears to hold that only what is (temporally) present exists. The most contentious issue is whether Augustine holds a subjectivist theory of time, and if so, what exactly that theory is. After canvasing the merits of possible answers to that question, the chapter concludes that the most charitable reading is that Augustine “does not seem to offer an account of what time is but instead ‘merely’ offers an aporetic examination of certain puzzles concerning time and our experience of it.” This construal is "entirely in keeping with his frequently open-ended and exploratory manner of philosophical investigation.”