Planck Time
In physics, the Planck time is the unit of time in the system of natural units known as Planck units. It is the time required for light to travel, in a vacuum, a distance of 1 Planck length. The unit is named after Max Planck.
The constant is expressed in units of seconds.
This constant, the Planck Time, , is specified with a standard uncertainty (standard deviation) of 0.00032 x s
See Uncertainty of Measurement Results, a discussion provided by NIST of the application of uncertainty to the documented constants.
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