---
title: playbackStartOffset
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avplayeritemaccesslogevent/playbackstartoffset
---

# playbackStartOffset

The offset, in seconds, in the playlist where the last uninterrupted period of playback began.

## Declaration

```swift
var playbackStartOffset: TimeInterval { get }
```

## Discussion

Discussion The property corresponds to “c-start-time”. The value of this property is negative if unknown. This property is not compatible with key-value observing.

## See Also

### Getting playback-related log events

- [playbackStartDate](avfoundation/avplayeritemaccesslogevent/playbackstartdate.md)
- [playbackSessionID](avfoundation/avplayeritemaccesslogevent/playbacksessionid.md)
- [playbackType](avfoundation/avplayeritemaccesslogevent/playbacktype.md)
- [startupTime](avfoundation/avplayeritemaccesslogevent/startuptime.md)
- [durationWatched](avfoundation/avplayeritemaccesslogevent/durationwatched.md)
- [numberOfDroppedVideoFrames](avfoundation/avplayeritemaccesslogevent/numberofdroppedvideoframes.md)
- [numberOfStalls](avfoundation/avplayeritemaccesslogevent/numberofstalls.md)
- [numberOfSegmentsDownloaded](avfoundation/avplayeritemaccesslogevent/numberofsegmentsdownloaded.md)
- [segmentsDownloadedDuration](avfoundation/avplayeritemaccesslogevent/segmentsdownloadedduration.md)
- [downloadOverdue](avfoundation/avplayeritemaccesslogevent/downloadoverdue.md)