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| nanosecond | |
|---|---|
| Unit system | SI |
| Unit of | time |
| Symbol | ns |
| Conversions | |
| 1 ns in ... | ... is equal to ... |
| SI units | 10−9 s |
Look up nanosecond in Wiktionary, the free dictionary.
A nanosecond (ns) is a unit of time in the International System of Units (SI) equal to one billionth of a second, that is, 1/1000000000 of a second, or 10−9 seconds.
The term combines the SI prefix nano- indicating a 1 billionth submultiple of an SI unit (e.g. nanogram, nanometre, etc.) and second, the primary unit of time in the SI.
A nanosecond is to one second, as one second is to approximately 31.69 years.
A nanosecond is equal to 1000 picoseconds or 1/1000 microsecond. Time units ranging between 10−8 and 10−7 seconds are typically expressed as tens or hundreds of nanoseconds.
Time units of this granularity are commonly found in telecommunications, pulsed lasers, and related aspects of electronics.