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Time in Arizona, as in all U.S. states, is regulated by the United States Department of Transportation [1] as well as by state and tribal law. All of Arizona is in the Mountain Time Zone. [2] Since 1968, most of the state—except the Navajo Nation —does not observe daylight saving time and remains on Mountain Standard Time (MST) all year.
Arizona's all-time record high is 128 °F (53 °C) recorded at Lake Havasu City on June 29, 1994, and July 5, ... Some of them still live in the state today.
The history of Arizona encompasses the Paleo-Indian, Archaic, Post-Archaic, Spanish, Mexican, and American periods. About 10,000 to 12,000 years ago, Paleo-Indians settled in what is now Arizona. A few thousand years ago, the Ancestral Puebloan, the Hohokam, the Mogollon and the Sinagua cultures inhabited the state.
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.
February 14, 1912. Arizona becomes 48th state. February 26, 1919. Grand Canyon National Park is created. November 3, 1964. Barry Goldwater loses the U.S. presidential election. September 21, 1981. Sandra Day O'Connor becomes the first woman on the U.S. Supreme Court. Part of a series on the.
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 ...
Previous observation of year-round daylight saving time. Permanent DST in the US was briefly enacted by president Richard Nixon in January 1974, in response to the 1973 oil crisis. [19] The new permanent DST law was retracted within the year. [1][2][42][43] Year-round daylight saving time was initially supported by 79% of the public, but that ...
It has been suggested that this article be into . () Proposed since August 2024. This timeline is a chronology of significant events in the history of the U.S. State of Arizona and the historical area now occupied by the state. 2000s 1900s Statehood 1800s Territory 1700s 1600s 1500s Before 1492.