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# deliveryRepeatInterval

Specifies the date components that control how often a user notification is repeated.

```
var deliveryRepeatInterval: DateComponents? { get set }
```

## Discussion

This value may be `nil` if the notification should not repeat.

The date component values are relative to the date the notification was delivered.

If the calendar value of the `deliveryRepeatInterval` is `nil`, the current calendar is used to calculate the repeat interval. For example, if a notification should repeat every hour, set the `hour` property of the `deliveryRepeatInterval` to `1`.

This value is ignored unless the user notification is scheduled with the [`NSUserNotificationCenter`](/documentation/Foundation/NSUserNotificationCenter) object.

---

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