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British Summer Time 2021: This is when and why the clocks go forward this weekend

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The clocks will go forward an hour this weekend, as we revert back to British Summer Time (BST).

Here is everything you need to know about the hour of sleep we will be losing overnight.

When do the clocks change?

It will soon stay lighter later as the clocks are due to change
It will soon stay lighter later as the clocks are due to change

On Sunday, March 28 at 1am, the time will go forward one hour.

This will revert the clocks back to British Summer Time - and means we should start seeing longer days and lighter evenings.

You can then leave them until 2am on Sunday, October 31 this year when we switch to Greenwich Mean Time (GMT).

Why do the clocks change in Spring and Autumn?

The idea was first proposed by Benjamin Franklin, but was later introduced to Britain by the builder William Willett.

Willett's pamphlet, 'The Waste of Daylight', argued that if the clocks were changed twice a year people would sleep better, save money on artificial light, and enjoy more daylight.

The idea was introduced into UK law in 1916.

Now the clocks change on the last Sunday of March and October.

The phrase 'spring forward, fall back' helps to remind us which way the clocks change at what point in the year.

Most digital devices will make the changes to the new right time automatically, but remember to switch any clocks that require a manual change to BST tomorrow.

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