| DisplayName | Description | ID | Base Class | Abstract | Hosted | Singleton | Group | Extension | Accessibility | ElementId |
![System.Calendar](/images/ClassType.png) | Calendar | | System.Calendar | System.AdminItem.CalendarBase | False | False | False | False | False | Public | 88394424-e415-e9a1-9088-2457b9d26446 |
![System.Calendar.Holiday](/images/ClassType.png) | Calendar Holiday | | System.Calendar.Holiday | System.AdminItem.CalendarBase | False | False | False | False | False | Public | b9a63642-4cf4-1e58-199d-935de0869188 |
![System.Calendar.WorkDay](/images/ClassType.png) | Calendar Work Day | | System.Calendar.WorkDay | System.AdminItem.CalendarBase | False | False | False | False | False | Public | 27a21d98-6777-f778-946b-2602baf53fdf |
![System.AdminItem.CalendarBase](/images/ClassType.png) | System.AdminItem.CalendarBase | | System.AdminItem.CalendarBase | System.AdminItem | True | False | False | False | False | Public | b50488eb-bc45-18f2-8b25-534eb48d0e42 |