The most developed idea to maximize the efficiency of people during the daylight was proposed by Benjamin Franklin.
During the First World War, in 1916, Kaiser Wilhelm was the first leader who decided to enable DST because he recognized that increasing the hours of daylight nationwide would benefit the energy consumption and health of people and soldiers in particular.
Along with the adoption of the Standard Time Act of March 19, 1919, in the United States, the first time DST was implemented was at 02:00 am on March 31 in the same year. On this day, people were asked to stop their clocks for one hour.