Philo Judaeus De Opificio Mundi 26

Moses says also; In the beginning God created the heaven and the earth: taking the beginning to be, not as some men think, that which is according to time; for before the world time had no existence, but was created either simultaneously with it, or after it; for since time is the interval of the motion of the heavens, there could not have been any such thing as motion before there was anything which could be moved; but it follows of necessity that it received existence subsequently or simultaneously. It therefore follows also of necessity, that time was created either at the same moment with the world, or later than it—and to venture to assert that it is older than the world is absolutely inconsistent with philosophy.