kotlin-stdlib / kotlin.time / nanoseconds nanoseconds Common JVM JS Native 1.3 @ExperimentalTime val Int.nanoseconds: Duration Returns a Duration equal to this Int number of nanoseconds. Common JVM JS Native 1.3 @ExperimentalTime val Long.nanoseconds: Duration Returns a Duration equal to this Long number of nanoseconds. Common JVM JS Native 1.3 @ExperimentalTime val Double.nanoseconds: Duration Returns a Duration equal to this Double number of nanoseconds.