English Time standard Cited by user Forbes72 on 27 Apr 2024 A time standard is a specification for measuring time: either the rate at which time passes or points in time or both.
English International Atomic Time Cited by user Guy Harris on 01 Feb 2018 International Atomic Time (TAI, from the French name ') is a high-precision atomic coordinate time standard based on the notional passage of proper time on Earth's geoid.