Why Daylight Saving Time?
Daylight Saving Time (DST) is the practice of advancing clocks during warmer months so that darkness falls later each day. The idea is to make better use of daylight, traditionally to save energy and allow for more outdoor activities in the evening.
The practice was first widely adopted during World War I to conserve coal. In the U.S., the Uniform Time Act of 1966 standardized DST, though some states like Arizona and Hawaii do not observe it.
When DST ends, clocks are typically set back one hour, returning to Standard Time. This means gaining an hour in the fall and losing one in the spring.