Amazon is open 24 hours a day, 365 days a year, so you should be able to place orders and receive items on Christmas Day. However, it's important to note that delivery times may be slower than usual due to the holiday, and some items may not be available for immediate delivery. It's also worth checking the specific item you're looking for to ensure it's available for delivery on Christmas Day. Additionally, it's always a good idea to plan ahead and place orders well in advance to avoid any delays or issues with delivery.