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What does AT stand for?

AT stands for Atomic Time

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Military and Government

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Other Resources:
We have 123 other meanings of AT in our Acronym Attic

Samples in periodicals archive:

Though now largely replaced by atomic time (UTC) it is still seen as the correct time for every International Time Zone.
The watch is the first analogue chronograph capable of receiving time signals on radio wave and automatically adjusts the time to the most accurate time which is the atomic time.
Since only the algorithm would change from year to year, those who rely on precision atomic time would not be affected by adding leap seconds.