---
title: earliestPresentationTimeStamp
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetsegmenttrackreport/earliestpresentationtimestamp
---

# earliestPresentationTimeStamp

The earliest presentation timestamp (PTS) for this track.

## Declaration

```swift
var earliestPresentationTimeStamp: CMTime { get }
```

## Discussion

Discussion The value is invalid if there’s no information available.

## See Also

### Inspecting a report

- [trackID](avfoundation/avassetsegmenttrackreport/trackid.md)
- [mediaType](avfoundation/avassetsegmenttrackreport/mediatype.md)
- [duration](avfoundation/avassetsegmenttrackreport/duration.md)
- [firstVideoSampleInformation](avfoundation/avassetsegmenttrackreport/firstvideosampleinformation.md)
- [AVAssetSegmentReportSampleInformation](avfoundation/avassetsegmentreportsampleinformation.md)