Not all GameStop stores have the same hours. However, the company website has a store locator at http://www.gamestop.com/browse/storesearch.aspx that allows people to find both the address and hours of the nearest GameStop site.
To use the store locator, type the zip code, address or city and state into the relevant box. Hitting return or enter allows you to access a list of nearby GameStop locations as well as their opening and closing hours for each day of the week. The store phone number is included. The distance to the store from the original address is indicated. In addition, a link to Bing driving directions appears.