Don’t forget! The clocks go back one hour tonight

The theory is: 6 days before (eg Monday), you change your child’s routine by making it run 10 minutes later.

William Willett, who died of influenza at the age of 58, was a tireless promoter of British Summer Time.

The Energizer battery company and the worldwide Association of Fire Chiefs urge you to use the clock change as a reminder to change the batteries in your home smoke detectors.

Daylight Saving Time was enacted to save energy and cut down on crime.

It was first proposed by the great great grandfather of Coldplay singer Chris Martin.

The government initially refused to introduce Daylight Saving Time, but decided as Britain and Germany were at war (1914-18) to try any method that saved on fuel and money. You can set your alarm for 9am on Sunday, and it will go off at the correct, adjusted time.

Making matters even more confusing, daylight saving time (DST) isn’t practiced everywhere in the world. This is created to make better use of the long sunlight hours over the summer months.

“Spring forward, fall back” – with fall being the American term for autumn – is a good way to remember that the clocks change.

British Summer Time (BST) is 1 hour ahead of Coordinated Universal Time (UTC).

The clocks have now gone back – and brought with it an extra hour in bed on Sunday morning.

The period of reduced daylight hours will last until March 25, 2016.

People are also generally said to be more productive if daylight hours are extended in the evenings.

“Meal times can help to set your body clock”, says Katie, so she suggests making mealtimes one of the key timing changes.

Would you want a change?

According to a new survey carried out by Irish lighting company Solus, 65% of Irish people would rather if the clocks did not change this Sunday. “One of the biggest mistakes that people make … is staying up later and thinking that they’re going to get an extra hour of sleep”, she adds.