King Charles's coronation is fast approaching. The two-hour event is happening tomorrow at Westminster Abbey at 11 a.m. in the United Kingdom, or 6 a.m. Eastern in the United States. The King's Procession from Buckingham Palace to Westminster Abbey will take place before the Coronation Service. The service will be followed by The Coronation Procession from Westminster Abbey to Buckingham Palace. The 40th coronation is a somber and symbolic ceremony as Charles officially takes over for his mother, although he's ruled since Queen Elizabeth died in September. He will be crowned monarch of the country and become the -- largely ceremonial -- head of the Commonwealth. Charles's wife, Camilla, was previously known as the queen consort but will now officially become queen. About two-thousand guests will attend, including first lady Jill Biden, along with Prince Harry and Prince William. William and Prince George will have roles in the ceremony.