![]() The second reason is that Newfoundland was a separate dominion when time zones were established in Canada. The reason for the unique 30-minute time zone is twofold: In terms of solar mean time, Newfoundland is located almost exactly 3.5 hours from Coordinated Universal Time (UTC) which is based on the prime meridian (0° longitude). Newfoundland Daylight Time (NDT), the island's Daylight Saving Time, is UTC-2:30. The standard time is Newfoundland Standard Time (NST), which is UTC-3:30. Almost all states in the US use Daylight Saving Time (DST). 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. Newfoundland, in Canada's most easterly province Newfoundland and Labrador, follows its own time zone. There are 9 official time zones according to the law. However, some locations on the province borders use different time zones, including Lloydminster, Creighton, and Denare Beach. Most of Saskatchewan observes Central Standard Time (CST) all year round, with no Daylight Saving Time (DST). Blanc-Sablon), Southampton Island, and some areas in British Columbia. They include Yukon, most of Saskatchewan, some locations in Québec east of 63° westerly longitude (e.g. 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. Time Zones Not Currently Being Observed in Canada Offset Note: Local time in these time zones changes when Daylight Saving Time begins and ends. For example, Central Time (CT) refers to Central Standard Time (CST) or Central Daylight Time (CDT), depending on which is currently in use. Like in the US, Canada's time zones are often referred to by their generic name, without making a difference between standard time and Daylight Saving Time designations. Generalized Time Zones in Canada Time Zone Abbreviation & Name Time Zones Currently Being Used in Canada OffsetĬanada has 6 standard time zones with 6 corresponding Daylight Saving Time (DST) time zones. Business Date to Date (exclude holidays).Most of Arizona and Hawaii don't use DST. 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). 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 Time Zones Not Currently Being Observed in United States Offset 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. 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. There are 9 time zones by law in the USA and its dependencies. Mountain Standard Time (MST) is 7 hours behind Greenwich Mean Time (GMT-7). A small portion of western part of Texas is in the Mountain Time Zone in the United States. Central Standard Time (CST) is 6 hours behind Greenwich Mean Time (GMT-6. Time Zones Currently Being Used in United States Offset The Eastern part of Texas (most of Texas) is in the Central Time Zone in the United States.
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