IT might be a good idea to have an early night on Saturday with clocks due to go forward on Sunday - effectively meaning one hour less in bed.

The clocks always go forward an hour on the last weekend in March in spring, and go back on the final weekend of October in autumn.

The UK reverts to Greenwich Mean Time at 1am on Sunday, March 26.

Why do the clocks change?

The moving of the clocks was first introduced during World War One by Germany and Austria, and then by the allies, to save on coal usage.

It was invented by George Vincent Hudson, a New Zealand entomologist in 1895, while British businessman William Willett is also credited with the idea as a way of getting up earlier and so having more daylight hours after work.

While the UK has always had daylight savings time since it was first introduced, it came into widespread use across the world during the 1970s because of the energy crisis.

Why do some people think Daylight Saving Time should be ditched?

Those against the change say its not clear if any energy savings are made while there are also potential health risks.

Critics claim that the darker mornings are dangerous for children walking to school and the energy saving argument may be invalid if people switch on fans and air-conditioning units during the lighter, warmer evenings. (But this is unlikely to bother people in the UK.)

In 2011, Tory MP Rebecca Harris floated a bill calling for year-round daylight savings but it failed to complete its passage through Parliament before the end of the session and was dropped.