---
title: duration
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmetadataitem/duration
---

# duration

The duration of the metadata item.

## Declaration

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

## See Also

### Accessing timing

- [time](avfoundation/avmetadataitem/time.md)
- [startDate](avfoundation/avmetadataitem/startdate.md)