Time & Frequency Services

At the time George Washington assumed the Presidency there was no standardized system of measurement in the United State. Different regions and professions used their own systems, which led to confusion and inconsistencies in trade and commerce. Accordingly the "Weights and Measures Act" was signed into law on July 20, 1790. This act established a uniform system of weights and measures based on the British Imperial system, which included units of length, weight, and volume, such as the foot, pound, and gallon. The act also established the role of the Surveyor of Public Lands, who was responsible for maintaining and disseminating the standards of measurement throughout the country.

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Time & Frequency Services

December 20, 2023
mike@standardsmichigan.com
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The National Institute of Standards and Technology is responsible for maintaining and disseminating official time in the United States. While NIST does not have a direct role in implementing clock changes for daylight saving time, it does play an important role in ensuring that timekeeping systems across the country are accurate and consistent.

Prior to the implementation of daylight saving time, NIST issues public announcements reminding individuals and organizations to adjust their clocks accordingly. NIST also provides resources to help people synchronize their clocks, such as the time.gov website and the NIST radio station WWV.

In addition, NIST is responsible for developing and maintaining the atomic clocks that are used to define Coordinated Universal Time (UTC), the international standard for timekeeping. UTC is used as the basis for all civil time in the United States, and it is the reference time used by many systems, including the Global Positioning System (GPS) and the internet.

Overall, while NIST does not have a direct role in implementing clock changes for daylight saving time, it plays an important role in ensuring that timekeeping systems across the country are accurate and consistent, which is essential for the smooth implementation of any changes to the system.

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Time Realization and Distribution

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