The European Commission will be conducting a "thorough assessment" of whether daylight saving time is still useful.
Daylight saving time was introduced to take advantage of the longer hours of sun during the summer months. It's become a normal part of life in many countries since it was first implemented in the German Empire and Austria-Hungary in 1916.
However, in recent years, it has come in for some criticism. Critics argue that daylight saving time causes poor work performance, short-term sleeping disorders and makes organising transport difficult.
Finland is an outspoken advocate against DST. The practice is irrelevant for people living at high latitudes, for whom the sun does not set at all summer long.
Critics say that changing the clocks is detrimental to people and animals.
The European Transport Commission even suggested abolishing DST completely. The European Parliament blocked that motion. But it has asked the European Commission, the European Union's executive body, to investigate the issue.
Changing the clocks was first put into practice in the European Union in 1980 and since then, the clocks have been put forward an hour every spring.