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British Summer Time 2021: when do the clocks change in the UK?

Although the chilly winds may suggest spring is still a little further away than we’d hope, this weekend the clocks will change as the United Kingdom enters British Summer Time, or BST.

When do the clocks change?

Known as Daylight Saving Time, clocks go forward an hour at 1 am on Sunday, March 28, when British Summer Time (BST) begins.

What is Daylight Saving Time?

Daylight Saving Time is the procedure of putting clocks forward for an hour so that daylight in the evening lasts longer, and sunrise comes earlier. In the summer, regions usually move clocks one hour forward, and move clocks one hour back in the autumn.

The summer solstice takes place on the longest day of the year, where a maximum of 16 hours and 38 minutes of unadulterated sunlight can occur. During winter solstice, this is just 7 hours and 49 minutes.

Benefits of Daylight Saving Time

  1. More sunlight to enjoy
    There’s nothing better than enjoying daylight well into the evening hours. More time in the sunlight will lead to a happier, cheerier you.
  2. Extra light and warmer days lowers energy consumption 
    As there’s more natural light, you need less artificial light!
  3. Fewer traffic accidents
    Daylight Saving Time contributes to improvements in road safety by reducing pedestrian fatalities during dawn and dusk hours.

Things to note

Make sure your equipment such as insulin pump, blood glucose meter and other devices also update their time as this could impact your diabetes management.

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