Starting on 30 April 1916, Germany and its World War I ally Austria-Hungary were the first to use 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 it in 1918.
"" "డేలైట్ సేవింగ్ టైమ్" "కోసం జర్మన్ పదం ఏమిటి?"
Sommerzeit