Clocks in the UK always will change this Sunday, March 28, when clocks will go forward one hour at 1am.
That means we lose an hour of sleep, but, as always, we can expect an extra hour in bed when clocks go back again in October.
The change to British Summer Time will bring more daylight in the evenings and less in the mornings.
The tradition started in America in 1784, when inventor Benjamin Franklin decided to get up earlier, to use daylight to the full and save on the cost of candles.
William Willet, the great-great-grandfather of Coldplay singer Chris Martin, spent years campaigning for the UK to also introduce Daylight Saving Time.