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Coordinated Universal Time - Wikipedia
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 and is not adjusted for daylight saving time. It is effectively a successor to Greenwich Mean Time (GMT). The coordination of
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Xem thêmThe official abbreviation for Coordinated Universal Time is UTC. This abbreviation comes as a result of the International Telecommunication Union and the International Astronomical Unionwanting to use the same
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Xem thêmTime zones around the world are expressed using positive or negative offsets from UTC, as in the list of time zones by UTC offset.
The westernmost time...
Xem thêmUTC divides time into days, hours, minutes and seconds. Days are conventionally identified using the Gregorian calendar, but Julian day numberscan also be used. Each day contains 24 hours and
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Xem thêmThe Scottish-Canadian engineer Sir Sandford Fleming promoted worldwide standard time zones, a prime meridian, and the use of the 24-hour clockas key elements in
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Xem thêmEarth's rotational speed is very slowly decreasing because of tidal deceleration; this increases the length of the mean solar day. The
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Xem thêmAs the Earth's rotation continues to slow, positive leap seconds will be required more frequently. The long-term rate of changeof LOD is approximately +1.7 ms per century. At the end of the 21st century, LOD will be roughly 86,400.004 s, requiring leap seconds every 250
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Xem thêmVăn bản Wikipedia theo giấy phép CC-BY-SAMục này có hữu ích không?Cảm ơn! Cung cấp thêm phản hồi UTC±00:00 - Wikipedia
UTC±00:00 is an identifier for a time offset from UTC of +00:00. In ISO 8601, an example of the associated time would be written as 2019-02-07T23:28:34+00:00. It is also known by the following mnemonic or historical names:
• Greenwich Mean Time
• Western European TimeUTC±00:00 is an identifier for a time offset from UTC of +00:00. In ISO 8601, an example of the associated time would be written as 2019-02-07T23:28:34+00:00. It is also known by the following mnemonic or historical names:
• Greenwich Mean Time
• Western European TimeWikipedia · Nội dung trong CC-BY-SA giấy phépUTC+0 - Wikipedia
UTC±0 – Wikipedia
UTC+0 - Wikipedia
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UTC±0 - Wikipedia
UTC±0:00 — Википедия
Koordinovaný svetový čas – Wikipédia
Всемирное координированное время — Википедия
Egyezményes koordinált világidő – Wikipédia
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