---
title: startDate
framework: coremotion
role: symbol
role_heading: Instance Property
path: coremotion/cmmotionactivity/startdate
---

# startDate

The time at which the change in motion occurred.

## Declaration

```swift
var startDate: Date { get }
```

## See Also

### Getting Metadata for the Motion

- [confidence](coremotion/cmmotionactivity/confidence.md)
- [CMMotionActivityConfidence](coremotion/cmmotionactivityconfidence.md)