when was deepavali in 1980 A.D.?

Answer 1

Diwali, also called Deepavali or Divali, is a major Hindu festival that is very significant in Hinduism, Sikhism and Jainism. Known as the "Festival of Lights," it symbolises the victory of good over evil, and lamps are lit as a sign of celebration and hope for mankind. Celebrations focus on lights and lamps, particularly traditional dīpa (earthen lamp, as illustrated). Fireworks are associated with the festival. Diwali is a colloquial name used in North India, while the festival is formally called Deepavali (dīpa meaning lamp + oli meaning light)[citation needed], and is called in South India as such.
Diwali is celebrated for five consecutive days at the end of Hindu month of Ashwayuja. It usually occurs in October/November, and is one of the most popular and eagerly awaited festivals in India. The festival is worshipped on exactly the same set of days across India. It falls in different months depending on the version of the Hindu calendar being used in the given region.
The Amantnm ("ending on the no-moon") version of the Hindu Calendar has been adopted as the Indian national calendar. According to this calendar, which is prevalent in southern India and Maharashtra, Deepavali falls in the middle of the month of Ashwayuja. According to the Purnimanta ("ending on the full-moon") version prevalent in northern India, the 5-day celebration is spread over the last three days of the month of Ashwayuja and the first two days of the new month of Kartika. In the Gregorian calendar, it falls generally in the months of October or November. In 2006, it was celebrated on October 21 (Saturday).