|
|
|
|
|
|
Nanosecond is equal to 10-9 second (unit of time), comes from a combination of the metric prefix nano (n) with the second (s). Plural name is nanoseconds with symbol is ns.
A day is a unit of time. In common usage, it is either an interval equal to 24 hours or daytime, the consecutive period of time during which the Sun is above the horizon.