---
title: timeMapping
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassettracksegment/timemapping
---

# timeMapping

The time range of the track that this segment presents.

## Declaration

```swift
var timeMapping: CMTimeMapping { get }
```

## See Also

### Retrieving segment information

- [isEmpty](avfoundation/avassettracksegment/isempty.md)