Daylight Saving Time (DST) originated over 100 years ago, first implemented during World War I in 1918 to conserve fuel and energy by extending work hours into daylight. The idea was that shifting clocks forward would allow people to make better use of natural daylight in the evenings, reducing the need for artificial lighting and fuel consumption. This practice was intended to save power and fuel during wartime and has since been maintained to provide longer daylight hours after typical workdays, which can promote safety, reduce crime, and support economic activities. The system cycles clocks forward in spring and back in fall to adjust to seasonal changes in daylight hours. Despite continuing debates about its effectiveness, DST persists mainly for energy conservation benefits and extending usable daylight time in the evenings.