Did you know that the concept of Daylight Savings was first proposed in 1784 by Ben Franklin in an essay titled "The Economical Project." Modern Daylight Savings was first proposed by the New Zealand entomologist George Vernon Hudson. The plan was not formally adopted in the U.S. until 1918. After the World War I ended, the law proved so unpopular (mostly because people rose earlier and went to bed earlier than people do today) that it was repealed in 1919. During World War II, President Franklin Roosevelt instituted year-round Daylight Saving Time, called "War Time," from February 9, 1942 to September 30, 1945. From 1945 to 1966, there was no federal law regarding Daylight Saving Time, so states were free to choose whether or not to observe DST. The Uniform Time Act of 1966, signed into law by President Lyndon Johnson, created Daylight Saving Time. Any State that wanted to be exempt from Daylight Saving Time could do so by passing a state law.