![]() MST - Mountain standard time equal to UTC - 7, is the time of the mountainous areas in the west of the United States.PST - il Pacific Standard Time equal to UTC - 8, this is the time that we find in the Pacific coast of the United States, but also in some areas of Canada and Mexico.The most important symbols to be known are those used in the United States, let's have a look to them starting from the west to the east and also considering the time difference with UTC (similar to the difference with United Kingdom): Traveling is important to know the acronyms related to time zones, nothing complicated, they are an alternative way to express the time in relation to UTC, the time reference standard previously seen. The acronyms UTC, PST, MST, CST, EST, CET When traveling to another country you also have to pay attention must be taken over to the time zone of arriving to the presence of daylight saving time (both the country of departure to arrival). Even more extreme is the choice of China that uses a single time zone. It must be said that the allocation of time zone also follows political/economic choices and therefore there are cases in which the time zone of a country does not follow perfectly the clove physical defined by meridians, one example are Spain and France that have the same time zone of Italy although not belong to the same longitudinal band, the reason is to facilitate trade relations between countries. Thanks to the time zone time varies from one country to another in multiple of time moving from one meridian to another, if we go from East to West we will turn back the clock as many hours as the number of time zones, vice versa traveling from west to east. ![]() Over time it has been replaced by UTC (Coordinated Universal Time), which coincides with the GMT but it was decided to remove the name of a place from a value international standard. So we have a total of 24 time zones and always by convention are indicated in relative terms with reference to the prime meridian of longitude 0 passing through the Greenwich Observatory, London in England, who is called GMT (Greenwich Mean Time). ![]() The time zone is no more than the clove, or rather the time only applied to the wedge, in the defining of time is used that has the meridian passing through the center of the segment of 15 degrees. The time zone definition start from the assumption that the earth has a spherical shape and that a complete rotation of 360 degrees on its own axis takes place in 24 hours dividing grades for the hours we get 24 cloves of angular amplitude of 15 degrees that path is then traveled in one hour. Today's world time standard, Coordinated Universal Time (UTC), is still located on the prime meridian (0°longitude).What is the time zone and why we have them It referred to solar time at the prime meridian, which runs near the Royal Observatory in Greenwich. Until 1972, GMT set the standard for standard for civil time worldwide. GMT, or Railway Time, as it was known then, was first used by the UK's railway companies. The UK's capital, London, changed from London Time to Greenwich Mean Time in 1847. The United Kingdom was one of the first countries to use a standard time for the whole country, instead of each place keeping its own local mean time. Time Zones Being Used in Dependencies of United Kingdom Offset It will become active again after the next clock change as Daylight Saving Time begins or ends. The above time zone is used during other parts of the year. Time Zone Not Currently Being Observed in United Kingdom Offset The overseas territories and crown dependencies of the UK bring the total to 9 time zones. The United Kingdom has one standard time zone. Time Zone Currently Being Used in United Kingdom Offset
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