atomic time


Also found in: Dictionary, Acronyms.
Related to atomic time: International Atomic Time, Eastern Time, World Time

atomic time

A time system that operates at a constant rate and that is measured by means of an atomic clock. The definition of the second has been in terms of atomic time since 1967. See also International Atomic Time.

atomic time

[ə′täm·ik ‚tīm]
(horology)
Any time system standardized with reference to an atomic resonance, such as the international standard cesium-133 transition.
References in periodicals archive ?
So it's not true that there's no time like the present, because it might have been that moment 30 seconds ago if you're on Coordinated Universal Time and I'm on International Atomic Time.
Leap seconds were introduced in the early 1970s to occasionally correct for those variations between solar and atomic time.
Let atomic time be out of whack with Earth rotation-based time, these scientists say.
At a meeting of the International Telecommunications Union in Geneva next week, representatives from 190 countries will gather to vote on whether or not to stop using this system and align ourselves strictly with atomic time.
Without leap seconds, the difference between atomic time and rotation-based time would separate by 1 second every 500 days.
Washington, Aug 27 (ANI): A caesium fountain clock that keeps the United Kingdom's atomic time is now the most accurate long-term timekeeper in the world.
From precise Atomic time to current indoor and outdoor temperature and humidity, wind speed and direction, wind chill, dew point, heat index, barometric pressure and rainfall data this device captures everything.
An industry leading designer, manufacturer and marketer of advanced-technology weather instruments, power monitors, clocks and watches (calibrated daily to the atomic time standard of the National Institute of Standards and Technology) and other measuring devices, La Crosse Technology[R] has operation centers in Europe, the United States and the Asia Pacific Region.
But, for various reasons, our planet rotates on its axis at irregular rates, and on average has been falling behind atomic time at a rate of about two milliseconds per day.
La Crosse Technology is an industry leading designer, manufacturer, and marketer of advanced-technology weather instruments, clocks and watches (calibrated daily to WWVB, the atomic time standard of the National Institute of Standards and Technology), power monitors and other measuring devices.
NYSE:CY) today announced that Oregon Scientific, a leader in consumer electronics and home weather stations, has implemented Cypress's CapSense capacitive touch sensing solution for the user interface in the new BARM699A radio alarm clock with weather station and radio-controlled atomic time.
In 1970, an international agreement established two timescales: one based on the rotation of the earth and one based on atomic time.