Koordinierte weltzeit online dating

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Each day contains 24 hours and each hour contains 60 minutes.

The number of seconds in a minute is usually 60, but with an occasional leap second, it may be 61 or 59 instead.

For sub-microsecond precision, clients can obtain the time from satellite signals.

UTC is also the time standard used in aviation, e.g., for flight plans and air traffic control clearances.

For most purposes, UTC is considered interchangeable with Greenwich Mean Time (GMT), but GMT is no longer precisely defined by the scientific community.

Days are conventionally identified using the Gregorian calendar, but Julian day numbers can also be used.The westernmost time zone uses UTC−12, being twelve hours behind UTC; the easternmost time zone, theoretically, uses UTC 12, being twelve hours ahead of UTC.In 1995, the island nation of Kiribati moved those of its atolls in the Line Islands from UTC-10 to UTC 14 so that Kiribati would all be on the same day.Computer servers, online services and other entities that rely on having a universally accepted time use UTC as it is more specific than GMT.If only limited precision is needed, clients can obtain the current UTC from a number of official internet UTC servers.

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