Show standard time the tile states engval observe tory has tiree standa rd td clocks clohs run nang n I 1 ng in constant temperature I 1 en I 1 ure vaults electrically wound and sealed to keep the air pressure constant meridian circle observations of selected stars are taken angularly ngul arly on clear nights and from these observations the error of standard clocks cl are a re determined dete r the observatory sends out lime time signals correct corrects Cor rectA ume time lg Is given E over ver radio adlo networks a aa 2 aa adv adverts erms faff delace dei ice iw |