International Atomic Time (TAI) is a high-precision time standard that is based on the vibrations of atoms, specifically cesium atoms, and serves as a reference for Coordinated Universal Time (UTC). It was established to provide a uniform time scale that is not influenced by the irregularities of the Earth's rotation, ensuring consistency and accuracy across various applications, particularly in navigation and telecommunications. TAI is maintained by over 300 atomic clocks located around the world, making it one of the most reliable time standards in existence.
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