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

# startDate

The activitiy’s start date and time.

## Declaration

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

## Discussion

Discussion If the endDate property is non-nil, the activity’s start date must be equal to or earlier than its end date.

## See Also

### Accessing workout data

- [uuid](healthkit/hkworkoutactivity/uuid.md)
- [endDate](healthkit/hkworkoutactivity/enddate.md)
- [duration](healthkit/hkworkoutactivity/duration.md)
- [allStatistics](healthkit/hkworkoutactivity/allstatistics.md)
- [statistics(for:)](healthkit/hkworkoutactivity/statistics(for:).md)
- [metadata](healthkit/hkworkoutactivity/metadata.md)
- [workoutConfiguration](healthkit/hkworkoutactivity/workoutconfiguration.md)
- [workoutEvents](healthkit/hkworkoutactivity/workoutevents.md)