International Atomic Time (TAI)
The time scale established by the Bureau International des Poids et Mesures (BIPM–International Bureau of Weights and Measures in Sevres, France) on the basis of atomic clock data supplied by cooperating institutions.
The time scale established by the Bureau International des Poids et Mesures (BIPM–International Bureau of Weights and Measures in Sevres, France) on the basis of atomic clock data supplied by cooperating institutions.