---
title: alignsStartWithPrimarySegmentBoundary
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avplayerinterstitialevent/alignsstartwithprimarysegmentboundary
---

# alignsStartWithPrimarySegmentBoundary

A Boolean value that indicates whether the start time of interstitial playback should snap to a segment boundary of the primary asset.

## Declaration

```swift
var alignsStartWithPrimarySegmentBoundary: Bool { get set }
```

## Discussion

Discussion If the value is true, the system adjusts the start time or date of the interstitial to the nearest segment boundary when the primary player is playing an HTTP Live Streaming asset.

## See Also

### Inspecting timing

- [time](avfoundation/avplayerinterstitialevent/time.md)
- [date](avfoundation/avplayerinterstitialevent/date.md)
- [willPlayOnce](avfoundation/avplayerinterstitialevent/willplayonce.md)
- [resumptionOffset](avfoundation/avplayerinterstitialevent/resumptionoffset.md)
- [playoutLimit](avfoundation/avplayerinterstitialevent/playoutlimit.md)
- [alignsResumptionWithPrimarySegmentBoundary](avfoundation/avplayerinterstitialevent/alignsresumptionwithprimarysegmentboundary.md)