A customer pays for her groceries after shopping at a Walmart store ahead of the Thanksgiving holiday in Chicago.
Kamil Krzaczynski | Reuters
The national retailer said its stores will be open from 6 a.m. to 11 p.m .until further notice. The new hours take effect Sunday.
Walmart is the largest grocer in the U.S. and has been dealing with a significant increase in sales as customers flock to stores to stock up on food, toilet paper, hand sanitizer and other items. Some grocers, including H-E-B, have adapted to the surge of shopping by limiting customers’ purchases of food and cleaning supplies. Others like Kroger are advertising immediate job openings to keep up with heightened demand.
Stop & Shop, which is owned by Ahold Delhaize, also announced changes to store hours on Saturday. It said most stores…