Daylight Saving Time (DST) is a practice of advancing the clock during the summer months by one hour to extend daylight in the evening. This means that the sun rises and sets one hour later than usual during DST.
In most parts of the United States, DST starts on the second Sunday of March and ends on the first Sunday of November. However, some states and territories do not observe DST, such as Arizona and Hawaii.
Daylight Saving Time was originally implemented as a way to save energy and make better use of daylight hours. It was first introduced during World War I to conserve fuel by reducing the need for artificial lighting in the evening.
Proponents of DST argue that it helps to save energy, reduce traffic accidents, and promote outdoor leisure activities. It is also believed to boost the economy by increasing consumer spending during the longer daylight hours.
Critics of DST claim that it can disrupt natural sleep patterns and lead to health issues, such as fatigue and increased risk of heart attacks. It can also be confusing and inconvenient for those who have to adjust their schedules and devices twice a year.