On Sunday 25th October at 2am, the clocks in the UK will go back an hour. This means that at 2am, it will actually be 1am again. Most digital clocks, including phones, laptops and smart watches will change the time on their own. 

If you're unsure what the time is and whether your clocks have changed automatically, check out this website that will tell you what the current time in the UK is. Make sure that all your clocks are showing the right time so you're not late to any lectures or appointments.