In physics, time is defined by its measurement: time is what a clock reads. In classical, non-relativistic physics, it is a scalar quantity (often denoted by the symbol t {\displaystyle t} ) and, like length, mass, and charge, is usually described as a fundamental quantity.
In physics, time is defined by its measurement: time is what a clock reads. In classical, non-relativistic physics, it is a scalar quantity (often denoted by the symbol t {\displaystyle t} ) and, like length, mass, and charge, is usually described as a fundamental quantity.
Source: Wikipedia "Time in physics" · CC BY-SA 4.0
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