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Daylight saving time (DST), also referred to as daylight saving (s), daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to make better use of the longer daylight available during summer so that darkness falls at a later clock time.
The Uniform Time Act of 1966 established a uniform set of rules for states opting to observe daylight saving time. [1] In the U.S., daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time changes taking place at 2:00 a.m. local time. With a mnemonic word play referring to seasons, clocks ...
Time in the United States. In the United States, time is divided into nine standard time zones covering the states, territories and other US possessions, with most of the country observing daylight saving time (DST) for approximately the spring, summer, and fall months. The time zone boundaries and DST observance are regulated by the Department ...
D aylight Saving Time has been legally enforced in the U.S. on-and-off since 1918, when congress passed the Standard Time Act. The law set the boundaries for the various time zones in the U.S.
Daylight Saving Time ends yearly at 2 a.m. on the first Sunday in November. That means, planning on re-setting any microwave or regular clocks before going to bed on Nov. 2. The time will change ...
The evolution of United States standard time zone boundaries from 1919 to 2024 in five-year increments. Plaque in Chicago marking the creation of the four time zones of the continental US in 1883 Colorized 1913 time zone map of the United States, showing boundaries very different from today Map of U.S. time zones during between April 2, 2006, and March 11, 2007.
Daylight saving time (DST) was included in the original Standard Time Act. A year later, Congress repealed daylight saving time from the Standard Time Act of 1918, though some communities continued to follow it. [4] During World War II, daylight saving time was once again mandated by Congress to conserve energy. After the war, the mandate to ...
Set your calendars and get ready for night to fall earlier. 2024’s daylight saving time (DST) is coming to an end in less than three weeks, with standard time set to kick in on Sunday, Nov. 3 at ...