Clocks to go forward overnight

The clocks go forward overnight at 1am - meaning an hour less in bed.
This marks the 110th year of daylight savings time in Ireland.
Daylight savings was introduced just a few weeks after the Easter Rising as the British Government tried to make more use of daylight to save energy during World War One.
That marked the end of what was known as Dublin Standard Time.
Each city across the UK and Ireland judged time in the late 1800s by when the sun was highest in the sky, meaning Dublin Time was 25 minutes and 21 seconds behind the time in London.
It also meant the likes of Cork and Galway had their own timezones – with Cork being 9 minutes behind Dublin and Galway 11 minutes behind.
But official Ireland worked off Dublin time – meaning the clock inside a courthouse in rural Ireland showed a different time to the clock outside – leading to more than one person missing their own sentencing.
That changed 110 years ago – the same year the clocks sprang forward for the first time.