Temps Atomique International (TAI) or International Atomic Time is a very accurate and stable time scale. It is an average of the time kept by many cesium clocks (atomic clocks) all over the world, and has been available since 1955. |
Temps Atomique International (TAI) or International Atomic Time is a very accurate and stable time scale. It is an average of the time kept by many cesium clocks (atomic clocks) all over the world, and has been available since 1955. |
It is maintained by the Bureau International des Poids et Mesures: see http://www.bipm.fr/enus/5_Scientific/c_time/time_1.html .