International Atomic Time (TAI)

International Atomic Time (TAI) is a highly precise time standard that measures the Earth's rotation based on the vibrations of atoms, specifically cesium atoms. It is maintained by a network of atomic clocks worldwide, ensuring extremely accurate timekeeping. TAI serves as the basis for Coordinated Universal Time (UTC), which is used for global timekeeping and by systems like GPS. Unlike clocks based on Earth's rotation, TAI offers consistency and stability, providing a uniform standard of time that allows for precise synchronization across scientific, technological, and everyday applications.