Most Walmart stores will stay open until 10 p.m., starting Monday.4,000 of the 4,700 Walmart U.S. stores will have the extended evening hours. The stores currently close at 8:30 p.m.Walmart Supercenters are usually known for being open 24 hours a day. The retailer made the change as part of its efforts to slow the spread of coronavirus.Stores will be open for a senior shopping hours every Tuesday. People age 60 or older or who may be more vulnerable can start shopping an hour before opening.You can see store hours on the company website.