<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macCatalyst: -",
    "macOS: -",
    "visionOS: -",
    "watchOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "EventKit",
  "identifier" : "/documentation/EventKit/EKCalendarEventAvailabilityMask",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "EventKit"
    ],
    "preciseIdentifier" : "c:@E@EKCalendarEventAvailabilityMask"
  },
  "title" : "EKCalendarEventAvailabilityMask"
}
-->

# EKCalendarEventAvailabilityMask

A bitmask indicating the event availability settings that the calendar can support.

```
struct EKCalendarEventAvailabilityMask
```

## Topics

### Initializers

[`init(rawValue:)`](/documentation/EventKit/EKCalendarEventAvailabilityMask/init(rawValue:))

Creates a calendar event availability mask with the specified raw value.

### Type Properties

[`EKCalendarEventAvailabilityBusy`](/documentation/EventKit/EKCalendarEventAvailabilityMask/busy)

The calendar supports the busy event availability setting.

[`EKCalendarEventAvailabilityFree`](/documentation/EventKit/EKCalendarEventAvailabilityMask/free)

The calendar supports the free event availability setting.

[`EKCalendarEventAvailabilityTentative`](/documentation/EventKit/EKCalendarEventAvailabilityMask/tentative)

The calendar supports the tentative event availability setting.

[`EKCalendarEventAvailabilityUnavailable`](/documentation/EventKit/EKCalendarEventAvailabilityMask/unavailable)

The calendar supports the unavailable event availability setting.

### Type Properties

[`EKCalendarEventAvailabilityBusy`](/documentation/EventKit/EKCalendarEventAvailabilityMask/busy)

The calendar supports the busy event availability setting.

[`EKCalendarEventAvailabilityFree`](/documentation/EventKit/EKCalendarEventAvailabilityMask/free)

The calendar supports the free event availability setting.

[`EKCalendarEventAvailabilityTentative`](/documentation/EventKit/EKCalendarEventAvailabilityMask/tentative)

The calendar supports the tentative event availability setting.

[`EKCalendarEventAvailabilityUnavailable`](/documentation/EventKit/EKCalendarEventAvailabilityMask/unavailable)

The calendar supports the unavailable event availability setting.

[`EKCalendarEventAvailabilityNone`](/documentation/EventKit/EKCalendarEventAvailabilityMask/EKCalendarEventAvailabilityNone)

The calendar does not support event availability settings.

## Relationships

### Conforms To

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

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

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

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

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

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

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

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

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)