Hi Joe thanks for the quick answer.
I intend to implement this feature for my news module only (Blog module modified).
I already make, the search results filter by my news module automatically, and for the date search, I only need to now the publish date for filter becouse the publish date of the news don't change.
I making some tests changing the code, and seems to work find to me.
I was looking into your roadmap and I see that the news module is a feature that is coming, so maybe you can implement the date search only for this module, if you want I can send you the changes that I made.