In the United States, Daylight Saving Time (DST) is a practice of advancing clocks during warmer months so that evenings have more daylight and mornings have less. The Uniform Time Act of 1966 established DST as a federal law, and it has been observed annually since 1967. However, there is an ongoing debate about the benefits and drawbacks of DST, and some states have considered or passed legislation to end its observance.
One of the main arguments in favor of DST is that it can save energy. By moving clocks ahead one hour in the spring, people can take advantage of more daylight in the evenings, which can lead to a reduction in the use of artificial lighting. Additionally, DST has been shown to have a positive impact on the economy, as it can boost tourism and retail sales.