---
title: startDate
framework: healthkit
role: symbol
role_heading: Instance Property
path: healthkit/hkworkoutbuilder/startdate
---

# startDate

The workout’s start date and time.

## Declaration

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

## See Also

### Starting the workout

- [beginCollection(withStart:completion:)](healthkit/hkworkoutbuilder/begincollection(withstart:completion:).md)
- [elapsedTime(at:)](healthkit/hkworkoutbuilder/elapsedtime(at:).md)