The clocks are set to change in the early hours of tomorrow morning, marking the start of British Summer Time.

The bad news is, you're going to lose an hour of sleep BUT we'll enjoy lighter evenings (although it will be darker in the mornings for a short while).

It also coincides with Mother's Day, so consider this two warnings in one! 

What happens on Sunday?

At 1am, you'll need to put your clocks forward by one hour.

Most mobiles and radio-controlled clocks will do this automatically so you'll just need to remember to change your others manually.

How do I know which way to change my clocks?

Just remember the phrase 'spring forward, fall back'

Why do the clocks change?

William Willett, a prominent Edwardian builder and businessman, put forward the idea of daylight savings time.

He argued that the clocks should change in the summer to get people up and about earlier (he was frustrated that he was the only person enjoying the daylight during his early morning horse rides.)

In 1907 he published a pamphlet called The Waste of Daylight, outlining plans to encourage people out of bed earlier in summer and spent the rest of his life fighting to get the government to agree.

He died in 1915 with the Government still refusing to back it.

But the following year, Germany introduced the system and Britain followed in May 1916.

Politicians hoped that the extra hours of daylight would reduce the amount of coal used for lighting, in order to lessen the economic strains caused by the First World War.

When will the clocks change again?

Greenwich Mean Time will return on October 29 with clocks being wound back by one hour.

Did you know?

Since 22 October 1995 the starting and finishing times of daylight saving time across the European Union have been aligned.