How do I disable a Dynamic Skylight in certain areas?

I have an exterior garden full of folliage and a very dark interior. I have set my skylight to proper illuminate the folliage and exteior (DFAO included). Now I need for the interior to be a lot darker. One solution would be to set a trigger to lower skylight intensity when I enter inside, but from outside i see the space to lit. How do i do that
permanently?

One possible solution is to use a post process volume, and change light settings, such as exposure.
Sorry my english, i am using google translator.