---
title: duration
framework: Immersive Media Support
role: symbol
role_heading: Instance Property
platforms: [iOS 26.4+, iPadOS 26.4+, Mac Catalyst 26.4+, macOS 26.0+, visionOS 26.0+]
path: immersivemediasupport/presentationdescriptor/duration
---

# duration

The total duration of the presentation commands.

## Declaration

```swift
var duration: CMTime?
```

## See Also

### Instance Properties

- [commands](immersivemediasupport/presentationdescriptor/commands.md)