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# Calendar.RecurrenceRule

A rule which specifies how often an event should repeat in the future

```
struct RecurrenceRule
```

## Topics

### Type Aliases

[`Specification`](/documentation/Foundation/Calendar/RecurrenceRule/Specification)

[`UnwrappedType`](/documentation/Foundation/Calendar/RecurrenceRule/UnwrappedType)

[`ValueType`](/documentation/Foundation/Calendar/RecurrenceRule/ValueType)

### Initializers

[`init(calendar:frequency:interval:end:matchingPolicy:repeatedTimePolicy:months:daysOfTheYear:daysOfTheMonth:weeks:weekdays:hours:minutes:seconds:setPositions:)`](/documentation/Foundation/Calendar/RecurrenceRule/init(calendar:frequency:interval:end:matchingPolicy:repeatedTimePolicy:months:daysOfTheYear:daysOfTheMonth:weeks:weekdays:hours:minutes:seconds:setPositions:))

### Type Properties

[`defaultResolverSpecification`](/documentation/Foundation/Calendar/RecurrenceRule/defaultResolverSpecification)

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Decodable`](/documentation/Swift/Decodable)

[`Escapable`](/documentation/Swift/Escapable)

[`Equatable`](/documentation/Swift/Equatable)

[`Copyable`](/documentation/Swift/Copyable)

[`Encodable`](/documentation/Swift/Encodable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

[`IntentValueExpressing`](/documentation/AppIntents/IntentValueExpressing)

[`IntentValueConvertible`](/documentation/AppIntents/IntentValueConvertible)

---

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