![]() In the United States and Canada, Central Standard Time is commonly shortened to Central Time (CT).Įffective 2007, the local time changes from CST to CDT at 02:00 LST to 03:00 LDT on the second Sunday in March, and returns at 02:00 LDT to 01:00 LST on the first Sunday in November.īeginning and end dates of the daylight saving time in the United States and in Canada. In these areas Central Standard Time is observed year-around. There are areas which do not follow daylight saving time. States North Carolina(NC), Eastern Standard Time (EST) North Dakota(ND), Most of the state: Central Standard Time (CST) North Dakota(ND) Western North. While Central Daylight Time (CDT) is observed during daylight saving time in the spring, summer, and autumn months. The Central Standard Time is based on the mean solar time of the 90th meridian west of the Greenwich Observatory.Ĭentral Standard Time is observed during the winter months. Each time zone as you go west is one more hour behind. CST means a standard time where six hours is subtracted from GMT (UTC/GMT −6), and during daylight saving time (DST), five hours is subtracted from GMT (UTC/GMT -5). It divided the United States into four time zones: Eastern, Central, Mountain, and Pacific. Indiana introduced DST in 2006.In North America, Central Standard Time (CST) refers to a time which is followed in the Central Time Zone. Most of Arizona and Hawaii don't use DST. It also includes Greenland, the world’s largest island and Danish territory. CST means a standard time where six hours is. North America is a vast continent comprising Canada, the United States, Mexico, the Caribbean, and Central America. In addition the uninhabited atolls of Baker Island (AoE) and Wake Island (WAKT) add to the time zone count, making 11 the total number of time zones in the US.Īlmost all states in the US use Daylight Saving Time (DST). In North America, Central Standard Time (CST) refers to a time which is followed in the Central Time Zone. There are 9 official time zones according to the law. The time zones in the law are defined by their offset from Coordinated Universal Time (UTC). ![]() Code, Title 15, Chapter 6, Subchapter IX - Standard Time. Time zones in the USA are defined in the U.S. Since 1967, the US Department of Transportation (DOT) has been responsible for governing time zones in the country. The US was divided into 4 standard time zones on November 18, 1883, and jurisdiction for the zones was given to the Interstate Commerce Commission (ICC). Time Zones Being Used in Dependencies of United States Offset They will become active again after the next clock change as Daylight Saving Time begins or ends. The above time zones are used during other parts of the year. Especially as people began to travel across North America by train, the many time zones became difficult to follow. Time Zones Not Currently Being Observed in United States Offset Note: Local time in these time zones changes when Daylight Saving Time begins and ends. In practice, this means that the local time in these time zones changes when DST begins and ends. For example, Eastern Time (ET) refers to Eastern Standard Time (EST) or Eastern Daylight Time (EDT), depending on which is currently in use. The time zones in the contiguous US are often referred to by their generic name, without making a difference between standard time and Daylight Saving Time designations. Generalized Time Zones in United States Time Zone Abbreviation & Name Since Howland Island and Baker Island constitute the world's westernmost landmasses in relation to the International Date Line, making them the last places on Earth where any date exists, they are sometimes assigned a theoretical 12th time zone called Anywhere on Earth (AoE). ![]() As neither Hawaii nor the 5 dependencies use Daylight Saving Time (DST), there are only 6 corresponding DST time zones. In addition, Alaska, Hawaii, and 5 US dependencies all have their own time zones. America/Winnipeg Pacific/Easter Pacific/Galapagos CST: Central Standard Time (North America) EAST: Easter Island Standard Time GALT: Galapagos Time MDT: Mountain Daylight Time (North America) New York Wed, 19. The contiguous US has 4 standard time zones. However, adding the time zones of 2 uninhabited US territories, Howland Island and Baker Island, brings the total count to 11 time zones. This time zone uses North American Standard Time in Central America. There are 9 time zones by law in the USA and its dependencies. Central Standard Time - CST Time Zone - Time and Date Central Standard Time (CST) is 6 hours behind Coordinated Universal Time (UTC). Time Zones Currently Being Used in United States Offset Business Date to Date (exclude holidays).
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