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# date(from:to:)

Tells the system a widget is relevant between two dates.

```
static func date(from: Date, to: Date) -> RelevantContext
```

## Parameters

`from`

The moment the widget becomes most relevant to a person.

`to`

The moment the widget is no longer relevant to a person.

## Return Value

A contextual clue that the system uses to determine the relevance of a widget in the Smart Stack on Apple Watch.

## Discussion> Note: Smart Stacks are available in iOS, iPadOS, and watchOS. However, functionality provided by RelevanceKit API is only available
> in watchOS. Calling its API on other platforms doesn’t have any effect.
> For more information, refer to <doc://com.apple.documentation/documentation/WidgetKit/Widget-Suggestions-In-Smart-Stacks>.

---

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