IT might happen twice a year, but the changing of the clocks always comes as a shock.

       It also sees most of us asking ourselves the same question in fear of missing our alarms or getting up too early.

       1

       The clocks go back on Halloween in 2021 Credit: Alamy Will my phone update automatically when the clocks change?

       Most digital devices will automatically update the time when the clocks the change.

       This includes smartphones, smart watches, televisions and radios.

       And it should apply to pretty much any model, whether Apple, Android or any other.

       But if you want to be certain your 7am alarm will go off at 7am, then it might be wise to check your phone settings.

       You can confirm whether you have your "date and time" options set to "set automatically".

       Even if your phone is switched off at the time of the change, it should update as soon as it is turned on.

       If you have an older style phone, and not considered 'smart', then you may need update the time manually.

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       When do the clocks change?

       The clocks always go forwards in March and back in October.

       This year, the clocks will go back an hour at 2am on Sunday, October 31 - or Halloween.

       It marks the end of British Summer Time (BST) and beginning of Greenwich Mean Time (GMT).

       The change will see Brits get an extra hour in bed, though it will also bring lighter mornings and darker evenings.

       Everyone will then lose an hour of sleep in March, when the clocks go forward and put the UK back on BST.

       The change will happen at 1am on March 27, 2022.

       Sun Explains: Why do we change the clocks twice a year?