to return to home. you could also say it gives me time to return home.

to return to home.

Cindy: Neither of the sentnces would be a common wording. For example, in the U.S.A. we would express the idea this way: "It gives me time to return home." Using "for" as in the first sentence, we would express it this way: "It gives me time for the return trip home." Neither of the two constructions in your question would be common constructions. The basic idea here, is a concern for the phrasing "return TO home". The common expression, in the U.S.A. at least, is that people "return home" but not Return---TO---Home. That is an unsual construction. . .

to return home

By the way, "return to home" is incorrect. You need to say "return home".