While the notion of round-the-clock Walmart shopping persists in the collective memory, the reality is that24-hour Walmart locations are a vanishing breed. The vast majority of Walmart stores across the United States have shifted tomodified operating hours, typically opening between 6 AM and 7 AM and closing between 10 PM and 12 AM. To definitively determine the hours ofyourlocal Walmart, youmustcheckthe official Walmart website or app. Don’t rely on outdated information or third-party sources – go straight to the source! The Demise of the 24-Hour Walmart: A Look Behind the Curtain The decision to discontinue 24-hour operations wasn’t arbitrary.