West Londoners are being invited to take part in the commemoration of the centenary of the outbreak of the First World War by turning their lights out for an hour on the evening on August 4.

The LIGHTS OUT project is being organised by 14-18 NOW, the official cultural programme for the First World War Centenary Commemorations.

The inspiration for LIGHTS OUT comes from a famous remark made on the eve of the outbreak of war by the then Foreign Secretary, Sir Edward Grey: “The lamps are going out all over Europe; we shall not see them lit again in our life-time.”

Britain declared war on Germany at 11pm on August 4, 1914 ushering in one of the darkest periods in our history.

By turning off their lights from 10pm to 11pm on August 4, leaving on a single light or candle for a shared moment of reflection, people can take part in marking the centenary of the outbreak of the First World War.

Millions of people are expected to participate in LIGHTS OUT and hundreds of local authorities, iconic buildings, national organisations including the BBC and the Royal British Legion, parish councils and places of worship have already pledged their support.

Iconic buildings and landmarks such as Blackpool Illuminations, the Houses of Parliament, the Eden Project, the Imperial War Museums and Tower Bridge will turn off their lights for that period; the Royal British Legion has launched a campaign for at least one million candles to be lit across the UK and theatre productions including those of the National Theatre’s War Horse, both nationally and internationally, will invite their audiences to take part in LIGHTS OUT after their curtain calls.

LIGHTS OUT complements the candlelit vigil service, which is to be held in Westminster Abbey from 10pm to 11pm on August 4.