Been to Westminster Abbey about 15 years ago and during the tour, they mentioned (IIRC) that the King is not coronated until a year and a day after the death of the previous King/Queen. Does anyone know if that is how they still do things? They used to make the oldest son automatically the King, but now the oldest child becomes the King or Queen, so who knows.
By the way the Abbey is probably the coolest structure I have ever been in, has the old oaken chair that every King has been coronated on since like 1300, and a hell of a lot of other great things to see. The front stoop is the Tomb of the Unknown Soldier, and not even the King is allowed to step on that stone.