Chaos Magic, especially the variety that depends upon the equations of Pete Carroll, has some interesting things to say about how time works. Specifically, Chaos Magical Theory posits that the past isn’t set, and instead is a “probable past” that can be as variable as the probable future that is not set even as we await it.
What this means is that retroactive enchantment is possible. In other words, you can cast a spell on a target in the past, in the hopes that its effects will change the present.
On a theoretical level, what you are doing is selecting from probable pasts the one that increases the probability of the effect you want. On a practical level, you are making it more likely that the present offer more easily identifiable solutions.
I once did a spell to increase my magical sensitivity. I cast the spell upon myself a month prior, with the hopes that this increased ability would have grown over the past month. The effect was noticeable immediately, especially since I was able to target the spell at a meditation exercise I had recorded in my journal.
Carroll’s example is to help with finding a missing object by sending back an signal in which you recall deliberately setting the missing object in a certain location, and then looking there.
A related exercise is designed to improve your predictive abilities. When you seek to know the answer to something, go into a light trance state and be open to “receive” the answer from a future you that has already conformed the information. Then, when your prediction is confirmed, go into a trance states and “send” that information back to the past where you were awaiting it.
Time is not as rigid as we have been led to believe, and the weird flexibility it hides can easily be exploited by a magician.