Did you try this? First hits are Walmart locations with hours. Followed by "People also ask" where the first item (with a correct answer) is "Will Walmart be open on Thanksgiving near me?". Followed by proper search results where the top two hits are, indeed, the two nearest Walmarts to me. How exactly would you improve that? Is there a better site to put at the top?
Twitter shouldn't be considered a proper source anymore. It's closed without an account and the access is severely limited. You can't see follow-up messages, questions, or whole threads.
Also I don't have Walmart here but it does show opening hours from Google Maps which is often better than official websites.