The DC Christmas tree lighting ceremony is an annual event that takes place in Washington, D.C. The exact date and time may vary from year to year, but typically the event takes place in late November or early December. The lighting ceremony marks the official start of the holiday season in the nation's capital and is a popular event for both locals and visitors. It typically includes a festive program with live music, entertainment, and, of course, the ceremonial lighting of the massive Christmas tree. The event is free and open to the public, and many people come to celebrate and take in the holiday spirit.