Daylight Saving Time DST traces its Origins to Benjamin Franklin's 1784 suggestion to save candles by adjusting sleep schedules however it wasn't until World War I that DST was formally adopted aiming to conserve energy Germany first implemented it in 1916 followed by other countries including the United States after the war many nations reverted to Standard time but the practice returned during World War II the uniform time act of 1966 established a consistent approach in the US over the years Studies have shown mixed results on its Effectiveness with debates surrounding Health impacts and productivity leaving many to question if the time shift is still relevant today