Diwali, the Festival of Lights, is celebrated by communities across London.
Every year, Trafalgar Square hosts a Diwali celebration that attracts thousands of people to central London. This year's packed programme of free entertainment includes music and dance from community groups and professional artists, food stalls and a range of activities for children.
You'll also find smaller festivals and family events across London, as well as special menus in some London restaurants.
Diwali has religious significance for Hindu, Sikh and Jain communities.
Known as the Festival of Lights, Diwali represents the victory of good over evil and light over darkness. The word Diwali or Deepavali literally means "a row of lamps".
Enthusiastically celebrated around the world, Diwali marks new beginnings and a renewal of commitment to family values. It traditionally symbolises joy, love, reflection, resolution, forgiveness, light and knowledge.
Diwali is timed to coincide with the new moon (the darkest night of the month) in October or November, so the actual date varies from year to year.