Introduction to Daylight Saving Time
Daylight Saving Time (DST) is the practice of advancing clocks during warmer months so that darkness falls at a later clock time. Typically, clocks are adjusted forward one hour in spring and backward one hour in autumn.
History of DST
The concept was first proposed by Benjamin Franklin in 1784, but it wasn't widely adopted until World War I, when countries sought to conserve fuel by reducing the need for artificial lighting.
Countries Using DST
Not all countries observe DST. Most of Europe and North America do, while most of Asia and Africa do not. Australia and South America have mixed adoption.
The Debate
DST remains controversial. Proponents argue it saves energy and promotes outdoor activities. Critics point to health impacts from sleep disruption and question the actual energy savings in modern times.