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Time and Frequency Standards Laboratory is a part of the National Physical Laboratory in New Delhi which maintains and calibrates the Indian Standard...

and synchronised with the worldwide system of clocks that support Coordinated Universal Time. Features of the Time and Frequency Standards Laboratory...

(DST or summer time). The official time signal is given by the Time and Frequency Standards Laboratory. The IANA time zone database contains only one zone...

certain frequency (a frequency standard). Among the most stable frequency references in the world are caesium standards (including caesium fountains) and hydrogen...

ed. (1974), Time and Frequency: Theory and Fundamentals (PDF), National Bureau of Standards, National Institute of Standards and Technology since 1988...

Rotation and Reference Systems Service Time and Frequency Standards Laboratory Time deviation (from Ancient Greek χρόνος (khrónos) 'time' and μέτρον (métron) 'measure')...

"Research - Time and Frequency". Retrieved 2015-06-12. "A Brief History of Atomic Clocks at NIST". The National Institute of Standards and Technology (NIST)...

Bureau of Standards, Metrology and Inspection, Ministry of Economic Affairs, the Republic of China National Standard Time and Frequency Laboratory Archived...

Time and frequency transfer is a scheme where multiple sites share a precise reference time or frequency. The technique is commonly used for creating and...

time reference. The time signal is derived from three atomic clocks installed at the transmitter site, and is based on time standards maintained by the...

transfer mechanism between time bureaux to determine and distribute time and frequency standards. As of 2003[update] TWSTFT is being evaluated as an alternative...

recognized as standards, where formerly they were matters of custom and practice. An example of a kind of time standard can be a time scale, specifying...

oscillators in laser-cooled atomic frequency standards and broadcasting time signals from national standards laboratories, although they need to be corrected...

BSF is the callsign of the time signal transmitter owned by the National Time and Frequency Standards Laboratory of the Ministry of Economic Affairs (Taiwan)...

for setting the exact time with National Physical Laboratory in the Ministry of Economy. The Laboratory of Frequency and Time in the NPL maintains atomic...

Physical Laboratory of India, situated in New Delhi, is the measurement standards laboratory of India. It maintains standards of SI units in India and calibrates...

Bureau of Standards was founded with the mandate to provide standard weights and measures, and to serve as the national physical laboratory for the United...

atomic clocks are one of the most accurate time and frequency standards, and serve as the primary standard for the definition of the second in the International...

technical services: Time Metrology Time and Frequency Section - National Physical Laboratory, UK IERS website NIST Web Clock FAQs History of time scales NIST-F1...

ensemble to ensemble, and has varied widely over time. The ISO defines international standard pitch as A440, setting 440 Hz as the frequency of the A above middle...