Full Idea
In the very act of ordering the universe the god created a likeness of eternity, a likeness that progresses eternally through the sequence of numbers, while eternity abides in oneness. This image of eternity is what we have come to call 'time'.
Gist of Idea
The god created eternity in the sequence of the universe, and its image we call 'time'
Source
Plato (Timaeus [c.362 BCE], 37d)
Book Reference
Plato: 'Timaeus and Critias', ed/tr. Waterfield,Robin [OUP 2008], p.25
A Reaction
As in Aristotle, the Greek view is usually that movement creates time. But it is hard to conceive movement without a prior conception of time.