Many stores are closed on Christmas Day, as it is a federal holiday in the United States and many other countries. However, some stores may choose to remain open for limited hours, especially those located in areas with a high tourist or international population. Some examples of stores that may be open on Christmas Day include gas stations, restaurants, and convenience stores. Some online retailers may also be open and offer same-day delivery or pick-up options. It is always a good idea to check with individual stores for their specific hours of operation.