No, there is no lead time, BUT there is a change you need to make client side.
Go into the preferences dialogue. You should see roughly half way down there, a "show results from" with a white and blue box next to it, "G" general and "PG" parental guidance. By the side of these two boxes is a dropdown dialogue. Drop that down, it has three options, "General", "General and PG", "General, PG and Mature". Select the third. You should now see a third box, "M" that's red - restart your client and your search function will now show mature areas.