december - it was for both. You know how they tell you to test anything in an inconspicuous place, most people don't do that so they don't realize that it's actually eating away at their varnish on the floor. As we just installed new floors & my db took such time to stain and varnish them properly we're not taking any chances. I'm taking the tip from another FORTer from pages back and drilling a hole in the bottom of the container and refilling it with vinegar & water. It's the best cleaner anyway!