---
title: kMDItemExposureTimeSeconds
framework: coreservices
role: symbol
role_heading: Global Variable
path: coreservices/kmditemexposuretimeseconds
---

# kMDItemExposureTimeSeconds

The exposure time, in seconds, used to acquire the document contents. A CFNumber.

## Declaration

```swift
let kMDItemExposureTimeSeconds: CFString!
```