The Atomic Clock

An atomic clock is a clock that uses an electronic transition frequency in the microwave optical, or ultraviolet region[2] of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element. Atomic clocks are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, to control the frequency of television broadcasts, and in global navigation satellite systems such as GPS.

The principle of operation of an atomic clock is not based on nuclear physics, but rather on atomic physics and using the microwave signal that electrons in atoms emit when they change energy levels. Early atomic clocks were based on masers at room temperature. Currently, the most accurate atomic clocks first cool the atoms to near absolute zero temperature by slowing them with lasers and probing them in atomic fountains in a microwave-filled cavity. An example of this is the NIST-F1 atomic clock, the U.S. national primary time and frequency standard.

The accuracy of an atomic clock depends on the temperature of the sample atoms—cooler atoms move more slowly, allowing longer probe times, as well as having reduced collision rates—and on the frequency and intrinsic width of the electronic transition. Higher frequencies and narrow lines increase precision.

National standards agencies maintain an accuracy of 10?9 seconds per day (approximately 1 part in 1014), and a precision set by the radio transmitter pumping the maser. These clocks collectively define a continuous and stable time scale, International Atomic Time (TAI). For civil time, another time scale is disseminated, Coordinated Universal Time (UTC). UTC is derived from TAI, but approximately synchronized, by using leap seconds, to UT1, which is based on actual rotations of the earth with respect to the solar time.
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While that can help you look WorldTimeServer.com times a minute all over the world, our visitors have expressed great interest in helping us to maintain the local computer’s clock accurate, too. Atomic Clock Synchronization is the best way to make this happen.

Can we have free atomic clock sync utility to help you improve the number of times references Windows atomic clock server, such as the atomic clock servers operated by the National Institute of Standards and Technology (NIST) in the United States. Are compared and the current computer time with atomic time, current, and an amendment to keep on your local computer up to date with the time now.

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Important Note: You must have selected the correct time zone on your computer and make your day the right to save the rules in force at the time of your operating system with Internet time synchronization process to work correctly. If the dates of daylight saving time (DST) has changed recently in your area, you must update your operating system with the new rules. Microsoft releases patches when necessary for the latest versions of Windows, but with older versions, you may need to update the registry yourself or find a third-party tool to do so.