Just as sunflowers turn their heads to catch every sunbeam, so too have we discovered a simple way to get more from our sun. We\'ve learned to save energy and enjoy sunny summer evenings by switching our clocks an hour forward in the summer. When we change our clocks.
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Daylight Saving Time begins for most of the United States at 2 a.m. on the first Sunday of April. Time reverts to standard time at 2 a.m. on the last Sunday of October. In the U.S., each time zone switches at a different time.
The Time Uniformity Committee\'s goal was accomplished but only after discovering and disclosing that on the 35-mile stretch of highway (Route 2) between Moundsville, West Virginia, and Steubenville, Ohio, every bus driver and his passengers had to endure seven time changes!
The main purpose of Daylight Saving Time (called "Summer Time" many places in the world) is to make better use of daylight. We change our clocks during the summer months to move an hour of daylight from the morning to the evening. Countries have different change dates.
Daylight Saving Time, for the U.S. and its territories, is NOT observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, most of the Eastern Time Zone portion of the State of Indiana, and the state of Arizona (not the Navajo Indian Reservation, which does observe). Navajo Nation participates in the Daylight Saving Time policy, due to its large size and location in three states.
Today approximately 70 countries utilize Daylight Saving Time in at least a portion of the country. The only major industrialized country not to have introduced daylight saving
Equatorial and tropical countries (lower latitudes) do not observe Daylight Saving Time since the daylight hours are similar during every season, so there is no advantage to moving clocks forward during the summer.