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# timer

An entity schema for a timer.

```
var timer: some AppSchemaEntity { get }
```

## Discussion

To make your app’s content available to Apple Intelligence, conform your [`AppEntity`](/documentation/AppIntents/AppEntity) to a schema that describes your content to the system. If your app’s functionality aligns with the `clock` domain and its content matches the `timer` schema, you can generate the properties and protocol conformance the schema requires for your app entity implementation with the `@AppEntity( .clock.timer)` Swift macro. To make your app work with Siri, see <doc://com.apple.documentation/documentation/AppIntents/apple-intelligence-and-siri-ai>.

The following example shows an app entity that conforms to the `timer` schema:

```swift
@AppEntity(schema: .clock.timer)
struct TimerEntity {
    // MARK: Static

    static let defaultQuery = TimerEntityQuery()

    // MARK: Properties

    let id: <#Identifiable.ID#>

    var duration: Duration
    var durationRemaining: Duration
    var state: <#TimerState#>
    var label: String?
    var isSleepTimer: Bool

    var displayRepresentation: DisplayRepresentation {
        <#DisplayRepresentation#>
    }

    // MARK: Query

    struct TimerEntityQuery: EntityQuery {
        func entities(for identifiers: [TimerEntity.ID]) async throws -> [TimerEntity] {
            <#code#>
        }
    }
}
```

The schema supports the following system experiences:

- Siri
- Shortcuts

For more information about the App Intents framework and the experiences it supports, see <doc://com.apple.documentation/documentation/AppIntents/getting-started-with-the-app-intents-framework>.

---

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