All of the state except Malheur County (but including a small strip in the south of Malheur).The northern counties of Benewah, Bonner, Boundary, Clearwater, Idaho, Kootenai, Latah, Lewis, Nez Perce and Shoshone.Except Northern Rockies Regional Municipality, Peace River Regional District, and the south-eastern communities of Cranbrook, Golden and Invermere.Principal cities: Los Angeles, Vancouver, Tijuana Except Aleutian Islands west of 169☃0′W.United States ( Hawaii–Aleutian Time Zone).French Polynesia (except Marquesas Islands and Gambier Islands).The two extreme time zones on Earth (both in the mid Pacific) differ by 26 hours. Some zones that are north/south of each other in the mid Pacific differ by 24 hours in time – they have the same time of day but dates that are one day apart. If present, a dagger (†) indicates the usage of a nautical time zone letter outside of the standard geographic definition of that time zone. In the section names, the letter after the offset is that used in nautical time. Note that there are many instances of unofficial observation of a different offset (and/or DST) than expected by areas close to borders, usually for economic reasons. A source for detailed DST and historical information is the tz database. Places that observe daylight saving time (DST) during their respective summer periods are listed only once, at the offset for their winter (usually known as "standard") period see their individual articles for more information. UTC+01:00) or the country-specific time articles (e.g. Information on daylight saving time or historical changes in offsets can be found in the individual offset articles (e.g. The main purpose of this page is to list the current standard time offsets of different countries, territories and regions. It includes countries and regions that observe them during standard time or year-round. Watch: Earth spins through a full year in this time-lapse video.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).Find out what the time difference is between UTC and your time zone, using this chart from the National Hurricane Center.Army, which divides up the Earth into time zones named after letters of the alphabet, refers to UTC as Zulu time, since it falls in the Z time zone, and Zulu is the code word for that letter in the International Radiotelephony Spelling Alphabet. The acronym came about as a compromise between English and French speakers: Coordinated Universal Time would normally be abbreviated as CUT, and the French name, Temps Universel Coordonné, would be TUC. You might be wondering why UTC is the abbreviation for Coordinated Universal Time. UTC incorporates measurements of the Earth's rotation as well as averaged readings from around 400 atomic clocks around the world, according to the website. In 1967, a committee at the United Nations officially adopted UTC as a standard that's more accurate than GMT for setting clocks. Earthquakes, melting ice sheets and natural oscillations in our planet's motion can cause changes of a few fractions of a second in the amount of time it takes the Earth to spin on its axis, according to NASA. The time standard against which clocks were set then became known as Greenwich Mean Time (GMT).īut by the middle of the 20th century, the new technology of the atomic clock, which can measure time with incredible accuracy, was showing that the Earth's rotation actually varied slightly from day to day. At the conference, 41 delegates from 25 countries chose to set the prime meridian - the zero point for longitude lines - as passing through Greenwich, England, according to. But there was no universally agreed-upon equivalent for lines of longitude, which run north to south. Lines of latitude, which run east to west around our planet, had always been measured from the equator. In 1884, members met at the International Meridian Conference in Washington, D.C., to discuss a way to synchronize clocks around the globe.
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