1.1. Why the Ontology 0/ Time? The intention that directs this research consists in an attempt to provide a herme neutic analysis ofthe drastic changes, which have occurred in 20th century philoso phy, in identifying the new role ascribed to the subject of time and temporality within the scope ofontology. Afterthe fundamental works ofE. Husserl, M. Heid egger. P. Rica: ur. and E. Levinas, it has been understood that the traditional issue (which could be traced back to Parmenides) between being and time, between the eternal and the transient (or historical), must once again be re-examined....