All schools will be closed tomorrow, with most business and public services also being shut as the Queen's State Funeral is held.
Her Majesty will be laid to rest at Windsor, after a service at Westminster Abbey.
To allow people to watch the historic occasion, a Public Holiday was approved by King Charles III during his Proclamation last weekend.
That was extended to people in the UK and was formally approved by Guernsey's Committee for Economic Development and States Members in Alderney.
Pictured: The Queen's State Funeral will be livestreamed at Saumarez Park tomorrow.
On Monday 19 September the majority of public buildings across the Bailiwick will be closed.
In Guernsey this will include Beau Sejour, all museums and Castle Cornet.
Guernsey Harbour and Airport will be open but will both cease commercial operations between 11:00 and 12:00 while the funeral is taking place. The funeral will be shown on screens in the airport and harbour terminal buildings for travellers who are in the buildings at that time.
The Princess Elizabeth Hospital and other "public buildings providing critical services" will remain open and will operate as normal.
Pictured: Books of Condolence remain open across the Bailiwick and flowers can be left at sites including the Sunken Garden.
Recycling and rubbish collections in Guernsey will continue as normal over the public holiday.
In Alderney, the Impot will be closed all day, while the dustcart round will start early to enable the staff to be finished before the State Funeral starts at 11:00.
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