Coordinated Universal Time or UTC is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time at 0° longitude (at the IERS Reference Meridian as the currently used prime meridian) such as UT1 and is not adjusted for daylight saving time.
UTC+01:00 is an identifier for a time offset from UTC of +01:00. In ISO 8601, the associated time would be written as 2019-02-07T23:28:34+01:00. This time is used in: Central European Time. West Africa Time. Western European Summer Time. British Summer Time. Irish Standard Time.
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Prior to the introduction of standard time, each municipality throughout the clock-using world set its official clock, if it had one, according to the local position of the Sun (see solar time). This served adequately until the introduction of rail travel in Britain, which made it possible to travel fast enough over long distances to require contin...
Historically, Universal Time was computed from observing the position of the Sun in the sky. But astronomers found that it was more accurate to measure the rotation of the Earth by observing stars as they crossed the meridian each day. Nowadays, UT in relation to International Atomic Time (TAI) is determined by Very Long Baseline Interferometry (VL...
UT1 is the principal form of Universal Time.However, there are also several other infrequently-used time standards that are referred to as Universal Time, which agree within 0.03 seconds with UT1: 1. UT0 is Universal Time determined at an observatory by observing the diurnal motion of stars or extragalactic radio sources, and also from ranging obse..."Date and Time Definitions". United States Naval Observatory. Retrieved 3 March 2013.Arias, E. F.; Guinot, B.; Quinn, T. J. (29 May 2003). Rotation of the Earth and Time scales (PDF). ITU-R Special Rapporteur Group Colloquium on the UTC Time Scale.Galison, Peter (2003). Einstein's clocks, Poincaré's maps: Empires of time. New York: W.W. Norton & Co. ISBN 0-393-02001-0.Discusses the history of time standardization.
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Tarkennus: miinusmerkki. Koko vuoden ajan UTC−1:tä käyttävät maat kirkkaankeltaisella, kesällä käyttävät maat oranssilla, normaaliaikana käyttävät maat tummansinisellä, merialueet sinisellä. UTC−1 on aikavyöhyke, joka on yhden tunnin UTC±0 -aikavyöhykettä jäljessä. Sitä käytetään noin 15–30 astetta läntistä pituutta.
UTC−01:00: blue (December), orange (June), yellow (year-round), light blue (sea areas) a The islands of Cape Verde are to the west of the African mainland. b Mauritius and the Seychelles are to the east and north-east of Madagascar respectively. UTC−01:00 is an identifier for a time offset from UTC of −01:00.
UTC−1 je vremenska zona, koristi se u: Kao standarno vreeme (cele godine) Zelenortska Ostrva; Kao standardno vreme samo zimi (severna hemisfera) Grenland (Danska) istočni deo ostrva, tj. Itokortormit i obližnja područja (koristi evrospka pravila za letnje vreme) Portugal