Type Property 型プロパティ

microseconds

The microsecond unit of duration.

Declaration 宣言 

@property(class, readonly, copy) NSUnitDuration *microseconds;

See Also 参照

Accessing Predefined Units あらかじめ定義された単位にアクセスする

hours
The hour unit of duration.
minutes
The minute unit of duration.
seconds
The second unit of duration.
milliseconds
The millisecond unit of duration.
nanoseconds
The nanosecond unit of duration.
picoseconds
The picosecond unit of duration.