[quote=@Prince of Seraphs]
<Snipped quote by PharaohAtem>

Obviously not exactly like the Flash cause talk about leaps of logic and breaking the laws of physics. Be that as it may there is nothing in the laws of time travel that prevent either the change of history or interaction with your past self beyond what a handful of science fiction writers have established to justify their storylines. If he has complete control over time as you seem to indicate there is no reason why he couldn't essentially alter any event in history that did not turn out the way he wanted. From that it could be assumed that he can manipulate time but not to the extent of actual time travel as most people understand it.

That aside that's a seriously risky move on his part as imbuing a mortal child with high titan abilities makes them extremely powerful and he has no means of guaranteeing they will join the war on his side. He could just as easily be delivering a powerful weapon into the hands of Zeus. And that example is also null and void because it deals with a specific authors interpretations of Greek myth and not Greek myth itself.
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Fist I never started he had complete control over time I only mentioned time travel and I can think of a number of examples where comics break the laws that f physics 

Time travel does give you some ganrate for example what if when he is freed it was his child that freed him he would have to go back and farther that child and same if his child is fighting by his side