As the leaves turn brown and the air grows crisp, it is clear that autumn is finally here. And with that arrives the time when British clocks are due to fall back by an hour, returning us to Greenwich Mean Time (GMT).

This annual event is scheduled for tomorrow at 2am, which is the last Sunday of October (26). The clock change marks the end of British Summer Time (BST) which has provided us with extended daylight hours during spring and summer.

As a result, days may seem shorter and nights lengthier - but there is the possible bonus of securing an additional hour in bed tonight - assuming the children allow you. And in further good news, UK devices like smartphones should update automatically.

Specialists from the Royal Museums Greenwich explained: "Daylight saving, or summer time, is a mechanism to make the most of increased summer daylight hours in the northern hemisphere... A campaign at the beginning of the 20th century successfully argued in favour of changing the clocks during the summer months to avoid wasting time in the morning."

According to the specialists, supporters insist that this clock modification helps cut energy consumption, encourages outdoor pursuits, and even reduces road accidents. However, some contend that darker mornings could create safety risks or lead to 'inconvenience' for certain workers.

The experts continued: "It's an ongoing debate that strongly depends on people's geographical location, occupation and lifestyle."

Britain will remain on GMT until 29 March 2026. At 1am on that day, clocks will move forward to BST. Internet-connected devices, such as computers and smartphones, should automatically adjust to this change.

Nonetheless, if you wish to jot it down, the Government provides a comprehensive list of forthcoming clock changes on its website.

According to the Mirror, a summary on its site adds: "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)."

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Exact time clocks go back tomorrow - and why you may get more sleep tonight - The Mirror