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# providesPreciseDurationAndTiming

A Boolean value that indicates whether the asset provides precise duration and timing.

```
static var providesPreciseDurationAndTiming: AVAsyncProperty<Root, Bool> { get }
```

## Discussion

Use the [`load(_:isolation:)`](/documentation/AVFoundation/AVAsynchronousKeyValueLoading/load(_:isolation:)) method to retrieve the property value.

This property value is <doc://com.apple.documentation/documentation/Swift/true> if you initialized the asset with the [`AVURLAssetPreferPreciseDurationAndTimingKey`](/documentation/AVFoundation/AVURLAssetPreferPreciseDurationAndTimingKey) initialization option, otherwise it’s <doc://com.apple.documentation/documentation/Swift/false>.

> Note:
> If calculating precise duration and timing isn’t possible for the media resources that the URL references, the value of this property is <doc://com.apple.documentation/documentation/Swift/false>, even if you requested otherwise.

---

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