This book is about Aristotle’s account of time in Physics IV.10-14. Aristotle claims that time is not a kind of change, but that it is something dependent on change. He defines it as a kind of ‘number of change’ with respect to the before and after. It is argued that this means that time is a kind of order (not, as is commonly supposed, that it is a kind of measure). It is a universal order within which all changes are related to each other. This interpretation is used to explain two puzzling claims that Aristotle makes: that the now is like a moving thing, and that time depends for its existe ... More

This book is about Aristotle’s account of time in Physics IV.10-14. Aristotle claims that time is not a kind of change, but that it is something dependent on change. He defines it as a kind of ‘number of change’ with respect to the before and after. It is argued that this means that time is a kind of order (not, as is commonly supposed, that it is a kind of measure). It is a universal order within which all changes are related to each other. This interpretation is used to explain two puzzling claims that Aristotle makes: that the now is like a moving thing, and that time depends for its existence on the soul.