Campaigners are calling for the government to implement an almost 90-year-old law that would fix the date of Easter in a bid to boost the economy. After next month's election, ministers could be asked to make sure Easter Day always falls between April 9 and 15, so businesses can plan holiday rotas in advance and allow the travel industry to better prepare for the summer season. In 1928, the Easter act was passed in Parliament to make sure that the holiday weekend would be a fixed date in April. Scroll down for video . David Cameron and his wife Samantha attend an Easter Sunday service at St Nicholas Church in Oxfordshire. After next month's general election, minister could be asked to consider fixing the date of Easter . Both the House of Commons and House of Lords passed the Act but it was unable to get the agreement of churches and therefore has never been implemented. It is thought that the Roman Catholic Church did not object to the plans although, they were never seriously discussed. But just before the dissolution of Parliament last week, Conservative Sir Greg Knight, who is defending his East Yorkshire seat at the general election, asked ministers if there were any plans to implement the Easter Act 1928. This also prompted the National Secular Society to write to Prime Minister David Cameron demanding Easter be a set date in April. Pope Francis leads Easter Mass in St Peter's Square in the Vatican. It is thought that the Roman Catholic Church do not object to the plans to fix a date for Easter . The letter by the society's executive director Keith Porteous Wood, said: 'The variation of the date of Easter by over a month causes significant and unnecessary inconvenience. This is particularly disruptive to the orderly planning of school terms and to business. 'As you will be aware, the law requires large shops, including supermarkets and even DIY stores, to close on Easter Sunday. 'The high proportion of the population that are not observant Christians, be they religiously unconcerned or of other faiths, are prevented from using them then, when many would want to do so. 'We support the rights of those who wish to observe Easter, but is is unreasonable and disrespectful to the remainder of the population for the operation of the law to prevent them from shopping then in such outlets.' Spectators gather to watch the The Passion of the Christ production on Good Friday in Trafalgar Square. But just before the dissolution of Parliament, Conservative Sir Greg Knight asked ministers if there were any plans to implement the Easter Act 1928. On the Gregorian calendar, used in the UK, Easter Sunday always falls on the first Sunday after the Paschal full moon . The Local Government Association and the Family and Childcare Trust have also backed the plan, saying that at least the two-week Easter school holidays should be the same every year to allow parents to plan childcare. However, according to the Independent Business Minister Jo Swinson said there was 'no indication' that Easter would become a fixed date. On the Gregorian calendar, used in the UK, Easter Sunday is always the first Sunday after the Paschal full moon. The Paschal full moon is the first full moon occurring on or after the spring equinox, meaning Easter weekend usually falls any time between March 22 and April 25. But since this shifts from year to year, most people follow the calendrical spring equinox, which is reckoned as March 21. In the Eastern Orthodox Church, Easter is determined using the Julian calendar and is always celebrated after the Jewish festival of Passover. This year it will be celebrated on April 12, next Sunday.
Campaigners are calling for Easter Day to be fixed between April 9 and 15 . Say it would help businesses and schools plan in advance for summer . An act was passed in 1928 to make sure Easter Sunday was on a fixed date . But despite being agreed in Parliament it has never been implemented .