Opponents of change served notice they would rally their forces against a private member's bill to be submitted by John Butterfill, Conservative MP for Bournemouth West.
Scottish National Party Leader Alex Salmond described Mr Butterfill as a 'would-be time bandit, threatening Scotland with daylight robbery'.
Because Scotland is further north and west of the rest of the UK, the switch would mean that in the depths of winter the sun would not rise in Glasgow until 9.46 am.
Advocates say the reform would prevent 660 deaths and serious injuries from road accidents each year. They claim it would deliver financial savings to health authorities of £200m, a £200m saving in energy costs and an increase of £1bn in tourist spending.