 We often think of daylight savings time as a common occurrence and an annual tradition, but it hasn't always been so. Daylight savings time was first used in the United States during World War I and implemented again in 1942, approximately six weeks after the attack on Pearl Harbor. The goal was to save fuel and better utilize resources for the civilian populace. Along with victory gardens and other various resource drives during that time period, daylight savings was considered a form of wartime savings. Daylight savings time was repealed in 1945 but remained in place in individual states until 1966 when Congress legislated a permanent daylight savings time for 48 states of the Union.