The sun is shining with the first warmth of spring so you know what that means - we're all about to lose an hour of sleep. At the end of the month, clocks will be turned back by one hour to mark the start of British Summer Time.
Clocks change twice a year, once during the last week of March and once in the last week of October. This year, the clocks will go forward by one hour at 1am on Easter Sunday, March 31, after they were initially turned back on October 29.
Unfortunately, this means losing an hour of sleep. The change was initially introduced to make better use of the early morning sunshine as the summer months draw in. The original campaign argued that by changing the clocks during the summer, people in the northern hemisphere can enjoy more sunshine.
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In 1907, Coldplay singer Chris Martin's great-great-grandfather William Willett published a pamphlet titled 'The Waste of Daylight'. This recommended changing the clocks forward in spring and back in the autumn, but involved a more complex change of advancing the clocks by 80 minutes in four separate moves of 20 minutes each.
Willett died in 1915 but one year later, Parliament passed the Summer Time Act, which established the practice of putting the clocks an hour forward during the summer.
The Government website said: "In the UK the clocks go forward 1 hour at 1am on the last Sunday in March, and back 1 hour at 2am on the last Sunday in October. The period when the clocks are 1 hour ahead is called British Summer Time (BST). There’s more daylight in the evenings and less in the mornings (sometimes called Daylight Saving Time). When the clocks go back, the UK is on Greenwich Mean Time (GMT)."