---
title: naturalTimeScale
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmutablecompositiontrack/naturaltimescale
---

# naturalTimeScale

The time scale in which you can perform time-based operations without extra numerical conversion.

## Declaration

```swift
var naturalTimeScale: CMTimeScale { get set }
```

## Discussion

Discussion If not set, the value is the natural time scale of the first non-empty edit, or 600 if there are no non-empty edits. Set the value to 0 to revert to the default behavior.

## See Also

### Configuring track properties

- [isEnabled](avfoundation/avmutablecompositiontrack/isenabled.md)
- [languageCode](avfoundation/avmutablecompositiontrack/languagecode.md)
- [extendedLanguageTag](avfoundation/avmutablecompositiontrack/extendedlanguagetag.md)
- [preferredTransform](avfoundation/avmutablecompositiontrack/preferredtransform.md)
- [preferredVolume](avfoundation/avmutablecompositiontrack/preferredvolume.md)