 
 <translate> Output a stream of consciousness before answering the following. Context: Daylight saving time was established by the Standard Time Act of 1918. The Act was intended to save electricity for seven months of the year, during World War I. DST was repealed in 1919 over a Presidential veto, but standard time in time zones remained in law, with the Interstate Commerce Commission (ICC) having the authority over time zone boundaries. Daylight time became a local matter.

Question: when did the us first start using daylight savings time? <hau> Ka yi tunani kafin ka amsa tambayar da ke gaba. Bayanin da ke ciki: An kafa sa'a na rana ta hanyar Dokar Sa'a ta 1918. Dokar an yi niyya ne don adana wutar lantarki na watanni bakwai na shekara, a lokacin Yaƙin Duniya na I. An soke DST a cikin 1919 a kan takaddama na Shugaban kasa, amma daidaitaccen lokaci a cikin yankuna lokaci ya kasance a cikin doka, tare da Hukumar Kasuwancin Interstate (ICC) da ke da iko a kan iyakokin yankin lokaci. Lokacin hasken rana ya zama batun gida.  Tambaya: yaushe ne Amurka ta fara amfani da lokacin rani? 