when did daylight saving time start in the united states
History of time in the United States Use of standard time gradually increased because of its obvious practical advantages for communication and travel. Standard time in time zones was not established in U.S. law until the Standard Time Act of 1918 of March 19, 1918, also known as the Calder Act (15 USC 260).[1][2] The act also established daylight saving time, itself a contentious idea.
Paris Peace Accords
Daylight saving time Starting on April 30, 1916, the German Empire and its World War I ally Austria-Hungary introduced DST (German: Sommerzeit) as a way to conserve coal during wartime. Britain, most of its allies, and many European neutrals soon followed suit. Russia and a few other countries waited until the next year, and the United States adopted daylight saving in 1918.
Economic nationalism While the coining of the term "