kotlin-stdlib / kotlin.time / nanoseconds nanoseconds Common JVM JS Native 1.3 @ExperimentalTime @DeprecatedSinceKotlin ( "1.5" , "1.8" , "1.9" ) val Int . nanoseconds : Duration (source) Deprecated: Use 'Int.nanoseconds' extension property from Duration.Companion instead. Returns a Duration equal to this Int number of nanoseconds. Common JVM JS Native 1.3 @ExperimentalTime @DeprecatedSinceKotlin ( "1.5" , "1.8" , "1.9" ) val Long . nanoseconds : Duration (source) Deprecated: Use 'Long.nanoseconds' extension property from Duration.Companion instead. Returns a Duration equal to this Long number of nanoseconds. Common JVM JS Native 1.3 @ExperimentalTime @DeprecatedSinceKotlin ( "1.5" , "1.8" , "1.9" ) val Double . nanoseconds : Duration (source) Deprecated: Use 'Double.nanoseconds' extension property from Duration.Companion instead. Returns a Duration equal to this Double number of nanoseconds. Exceptions IllegalArgumentException - if this Double value is NaN .