Dissertation, Zürich (1982)
One of the most famous and most important commentaries of the Neoplatonist Simplicius treats the Physics of Aristotle. Several times, having commented the text within the Aristotelian frame, Simplicius treats the same subject again but now under a Neoplatonist perspective. These texts are called corollaries and one of them is about time.
Discussing other Neoplatonist views about time (esp. Pseudo-Archytas, Plotinus, Damascius, Jamblichus), he tries to clarify the nature of our physical time arising from and differentiating (diakrisis) a ”first“ unmoving time. What Simplicius calls ”first time“ is the very first difference in being, identical with the fact that the soul (psyche) contains the structure of the totality of things in itself before they exist materially (vorweg-bei-anderem-Sein der Seele), which makes possible the original synthesis of becoming. Following this line, our physical time brings unity to the ever changing nature.