---
title: duration
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/animationplaybackcontroller/duration
---

# duration

The length of time the animation spans, in seconds.

## Declaration

```swift
@MainActor @preconcurrency var duration: TimeInterval { get }
```

## See Also

### Timing animation playback

- [speed](realitykit/animationplaybackcontroller/speed.md)
- [clock](realitykit/animationplaybackcontroller/clock.md)
- [time](realitykit/animationplaybackcontroller/time.md)