That's a good question, Jim. Disneyland does in fact open on Christmas Day, but the operating hours may be reduced. The park is a popular destination for families who want to celebrate the holiday with some fun and excitement, so the park will likely be open for a limited time to accommodate the increased crowds. The park may also have special holiday-themed activities and events planned for guests. So if you're planning a trip to Disneyland on Christmas Day, it's best to check the park's website or call their guest services line for the most up-to-date information on hours of operation and any special events happening that day.