No, not really contradicting myself - a single ended line has a point on one end and stretches out from that point to somewhere we have not found yet, as a loose parallel to creation.
With creation, there is nothing, no space, no time, nothing material, no space for what is material, and no changes, therefore no before or now or after of nothing changing into nothing else.
then suddenly creation appears, the point at the end of the line appears, and moves in change from yesterday toward today and toward tomorrow. You like points; Point A is creation. Point B is the next linear position, size, shape, of all moving creation that has its being while point A is no longer :“now”. Therefore time is introduced as a means of understanding how and where A is no longer A but is now B, and for estimating what point C will be like. Change introduces the intelligible concept of time, which can only be intelligible if the change of creation is intelligible.
The point of creation is not a change, but there is only “now”, because all could have been created fully actual without any need of change, just sitting there without movement, fully at rest. It is only in the movement to a target that there is time.