Time Service

Time Service


a system of specialized laboratories, scientific research institutes, observatories, and other establishments (or a single such institution) that determines and maintains time and transmits time information to interested parties. In the USSR, this is the function of the State Time and Frequency Service, which provides services necessary for measuring time and frequencies in the country’s standard units and systems for atomic and Greenwich time. The time-service activities of the various ministries and departments of the State Time and Frequency Service are directed by the Interdepartmental Commission of the Unified Time Service of the Gosstandart (State Standard Administration) of the USSR.

Atomic time is maintained by atomic clocks that are regularly compared with the State Standard of Time and Frequency using radio, television, and clocks that can be transported from place to place. With this system, the discrepancy between the time service and the State Standard is held to 1 microsecond or fractions of a microsecond. Greenwich time is determined by means of astronomical observations (see ).

Information concerning accurate time and reference frequencies is transmitted by means of time signals and reference frequencies and by way of bulletins. The bulletins contain information on the deviation of the time of signal transmissions from the time of the State Standard, the deviation of reference frequencies from the nominal values, and the difference between Greenwich time and atomic time. The data published in the bulletins are computed by the Chief Metrological Center of the State Time and Frequency Service of the USSR from the results of monitoring time signals and astronomical observations of all the time services in the USSR and the time services of a number of socialist countries. The work of time services is coordinated internationally by the International Time Bureau in Paris, which collates observations and publishes information on the time-service data of all the member countries.


Bakulin, P. I., and N. S. Blinov. Sluzhba tochnogo vremeni. Moscow, 1968.
Pavlov, N. N. “Sluzhba vremeni.” In Astronomiia v SSSR za sorok let, 1917–1957. Moscow, 1960.
Belotserkovskii, D. Iu., and G. N. Palii. “Gosudarstvennaia sluzhba vremeni i chastoty SSSR.” Izmerittel’naia tekhnika, 1972, no. 12.


References in classic literature ?
But Sundays he'd drive his family to church and sit by that dog's grave and read his Bible all the time service was going on.
2Good Time service subscribers will moreover benefit from a midnight on-net call cost of NGN 0.
The initial migration into any 2Good Time service class in a month is free of charge, while subsequent migrations within that month will draw a NGN 100 charge.
Headquartered in San Jose, California; Certichron currently manages CertifiedTime “NIST UTC” Time Service Centers in New York, New Jersey, Hatfield PA, Chicago, Atlanta, Las Vegas, Los Angeles and San Jose.
The ITA further expands NIST Time Services by adding PTP accessibility, something unavailable anywhere else.
The Certichron ITA brings NIST-certified Time Services as a pay-for-play type resource to the absolute edge of the Trading Framework for use in all OATS compliance requirements.
The system also is improving time service by at least 24 hours.
AgoraINS also added several reports, such as placement reports and time service, to the system's functionality.
It is used to evaluate and enhance the performance of the other clocks in NIST's timekeeping system; its extreme accuracy also is incorporated into the time signals broadcast by NIST's radio stations and other time services.