---
title: movieTimeScale
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetwriter/movietimescale
---

# movieTimeScale

The time scale of the movie.

## Declaration

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

## Discussion

Discussion The default value is 0, which indicates that the asset writer chooses an appropriate value, if applicable. You can’t set this property value after writing starts.

## See Also

### Configuring fragment output

- [movieFragmentInterval](avfoundation/avassetwriter/moviefragmentinterval.md)
- [initialMovieFragmentInterval](avfoundation/avassetwriter/initialmoviefragmentinterval.md)
- [initialMovieFragmentSequenceNumber](avfoundation/avassetwriter/initialmoviefragmentsequencenumber.md)
- [producesCombinableFragments](avfoundation/avassetwriter/producescombinablefragments.md)
- [overallDurationHint](avfoundation/avassetwriter/overalldurationhint.md)