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The military time zones are a standardized, uniform set of time zones for expressing time across different regions of the world, named after the NATO phonetic alphabet. The Zulu time zone (Z) is equivalent to Coordinated Universal Time (UTC) and is often referred to as the military time zone. The military time zone system ensures clear ...
The Atlantic Time Zone is a geographical region that keeps standard time—called Atlantic Standard Time ( AST )—by subtracting four hours from Coordinated Universal Time ( UTC ), resulting in UTC−04:00. AST is observed in parts of North America and some Caribbean islands. During part of the year, some portions of the zone observe daylight ...
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.
The Newfoundland Time Zone ( NT) is a geographic region that keeps time by subtracting 3.5 hours from Coordinated Universal Time ( UTC) during standard time, resulting in UTC−03:30; or subtracting 2.5 hours during daylight saving time. [1] The clock time in this zone is based on the mean solar time of the meridian 52 degrees and 30 arcminutes ...
UTC−2. (BRT+1) UTC−04:00 is an identifier for a time offset from UTC of −04:00. It is observed in the Eastern Time Zone (e.g., in Canada and the United States) during the warm months of daylight saving time, as Eastern Daylight Time. The Atlantic Time Zone observes it during standard time (cold months). It is observed all year in the ...
Prior to the 19th century, transatlantic crossings were undertaken in sailing ships, and the journeys were time-consuming and often perilous.The first trade route across the Atlantic was inaugurated by Spain a few decades after the European Discovery of the Americas, with the establishment of the West Indies fleets in 1566, a convoy system that regularly linked its territories in the Americas ...
The Mali Empire was one of the great empires of West Africa, reaching its peak in the 14th century. Mali was founded by the legendary Sundiata Keita in approximately 1230 after defeating the Sosso at the battle of Krina. Its capital was at Niani, in modern Guinea. After Sundiata's death in 1255, the kingship remained in the Keita family line ...
This is a list of the UTC time offsets, showing the difference in hours and minutes from Coordinated Universal Time (UTC), from the westernmost (−12:00) to the easternmost (+14:00). It includes countries and regions that observe them during standard time or year-round. The main purpose of this page is to list the current standard time offsets ...