Standard units of measurement are the units most typically used to measure a quantity. Time has various units of measurement, eg seconds, minutes, hours, days and years. Clocks or stopwatches can ...
A nanosecond (ns) is a unit of time in the metric system, equal to one billionth (10-9) of a second (s). The second is the base unit of time in the International System of Units (SI), making the ...