kesäaikakauteen

Kesäaikakauteen, also known as summer time or daylight saving time, is the practice of advancing clocks during warmer months so that darkness falls at a later hour of the day. This is achieved by setting clocks forward, typically by one hour, in the spring and then back again in the autumn. The primary objective is to make better use of daylight, particularly during the evening hours.

The concept of shifting clocks to optimize daylight has a long history. While often credited to Benjamin Franklin, his proposal was more of a satirical essay on idleness. Modern daylight saving time practices began to emerge in the late 19th and early 20th centuries. Germany was the first country to widely implement daylight saving time in 1916 during World War I, aiming to conserve coal. Many other countries followed suit, often for similar economic or wartime reasons.

In Finland, kesäaikakauteen was introduced in 1981. The practice is governed by European Union directives, which set the dates for the clock changes across member states. The clocks are typically moved forward on the last Sunday in March and back on the last Sunday in October. The transition involves a period of adjustment for individuals as their routines adapt to the altered daylight hours. Public opinion on the benefits and drawbacks of kesäaikakauteen is varied, with ongoing discussions about its impact on sleep patterns, health, and energy consumption.