The move to British Summer Time (BST) means that the days are getting longer - but switching clocks also means a whole hour less in bed.
The good news is that many of our internet-connected clocks (like smartphones, tablets and TVs) will do it automatically. But you still need to be prepared to avoid getting caught out.
See also: Get to know your body clock
See also: Is eating late at night bad for you?
Thankfully this year it falls on a Sunday - so there's hopefully no prospect of missing the morning meeting or your regular train.
But why does it happen and what's the best way to deal with the time change? To make sure you're set for Daylight Savings Time, here's everything you need to know about swapping over.
When do the clocks go forward?
The clocks go forward on Sunday March 26 at 1am , which means you should put your clock forward an hour.
The time right now:
How do I remember which direction to change the clocks?
To avoid confusion, simply memorise the simple phrase 'spring forward, fall back'.
The clocks always go forward an hour on the last weekend in March in spring and go back on the final weekend of October in autumn.
Why do we change the clocks?
The moving of the clocks was first introduced during World War One by Germany and Austria, and then by the allies, to save on coal usage.
It was invented by George Vincent Hudson, a New Zealand entomologist in 1895, while British businessman William Willett is also credited with the idea as a way of getting up earlier and so having more daylight hours after work.
While the UK has always had daylight savings time since it was first introduced, it came into widespread use across the world during the 1970s because of the energy crisis.
Dealing with the time change
One of the downsides of the clocks changing it it can disrupt your sleep patterns leaving you feeling groggy and unrested.
To avoid this, you might want to go to bed an hour early to counteract the time change.
If you're having trouble sleeping, there are several things you can do to help you slip into slumber, from humming to yourself to inhaling through your left nostril.
Does changing the time still have any benefits?
Arguments still rage over the economic or health benefits it brings.
Those in favour say it saves energy, reduces traffic accidents and crime, and is good for businesses too.
Those against the change say it's not clear if any energy savings are made, while there are also potential health risks.
Researchers compared 23,000 children aged five to 16 in England, Australia, the US, Norway, Denmark, Estonia, Switzerland, Brazil, and the Portuguese island of Madeira.
To test the effect of daylight on activity levels, the children wore electronic devices measuring body movement.
The scientists found children's total daily activity levels were up to 20% higher on summer days when the sun set after 9pm than on winter days when darkness fell.