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