Sunday trading laws were introduced under the Sunday Trading Act 1994, which limits shops with retail space over 280 square metres to a maximum of six hours of trading.
New legislation would enable larger supermarkets to open for more than six hours on Sundays, a plan the chief whip, Mark Spencer, believes Labour and more traditionally minded Conservative MPs would oppose.
Paddy Lillis, the general secretary at Usdaw, the UK’s fifth biggest trade union, with more than 400,000 members, criticised the plan. “ Opening for longer will increase overheads but not necessarily take any more cash through the tills. The fact is that customers will not have more to spend just because the shops are open for longer.”
David Cameron’s attempt to abolish Sunday trading laws in 2016 failed after 27 Tory MPs rebelled.














