In London, just before dawn, more than 700 members of the Armed Forces staged a full military rehearsal of Lady Thatcher's funeral.
Later, it was announced that the chimes of Big Ben, and the Great Clock at Westminster, will be silenced during Wednesday's ceremony.
ITV News Correspondent Tim Ewart reports:
Downing Street has released a detailed Order of Service for Baroness Thatcher's funeral on Wednesday.
The full details of Baroness Thatcher's funeral have been released by Downing Street.
Baroness Thatcher's daughter Carol has spoken publicly to thank everyone who sent messages of sympathy and support.