> For the complete documentation index, see [llms.txt](https://help.security.gallagher.com/knowledge-hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.security.gallagher.com/knowledge-hub/products/cc-software/configure/calendars/calendars-special-calendars.md).

# Special calendars

Understand when to use Special Calendars and how they override Default Calendar dates for individual controllers.

{% hint style="info" %}
Read [Default calendar](/knowledge-hub/products/cc-software/configure/calendars/calendars-default-calendar.md) first.
{% endhint %}

### Special Calendar purpose

A Special Calendar overrides dates for individual controllers. Use one when remote sites observe different holidays or schedules.

Special Calendars inherit the Default Calendar. They override individual dates where needed.

### Assign a controller calendar

On a controller's **Setup** tab, use the **Calendar** field. When set to the system Default Calendar (`-- Use Default --`), the controller uses the Default Calendar’s scheduling for all scheduled items.

![Controller Setup tab showing the Time Zone and a Calendar field set to "-- Use Default --"](https://328339335-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6bM8WhlBE9BYizPWJaPN%2Fuploads%2Fgit-blob-01ce5a561f259975490493bd6101ca48f82a1747%2FSECHUB-CCS-CAL-SPECIAL-01-controller-setup-use-default.png?alt=media)

### Sydney server and Auckland remote-site example

A Command Centre server is in **Sydney, Australia**, with a remote site of a few controllers in **Auckland** controlling a small site there. There is a holiday on the **28th of January in Auckland**, but the holiday in **Sydney is on the 27th**.

Set the Sydney controllers to the **Default Calendar**, and the Auckland controllers to the **Special Calendar**. The **Time Zone** also changes per controller (Sydney is UTC+10; Auckland is UTC+12):

![Sydney controller Setup tab: Time Zone UTC+10 Canberra/Melbourne/Sydney, Calendar set to Use Default](https://328339335-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6bM8WhlBE9BYizPWJaPN%2Fuploads%2Fgit-blob-5179358dc3b9009292882306a1879fdcb30ec81b%2FSECHUB-CCS-CAL-SPECIAL-02-sydney-controller-default-calendar.png?alt=media)

![Auckland controller Setup tab: Time Zone UTC+12 Auckland/Wellington, Calendar set to Special Calendar](https://328339335-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6bM8WhlBE9BYizPWJaPN%2Fuploads%2Fgit-blob-ad27ad270eca4c6471cb0fdd3794d71d1f8027a5%2FSECHUB-CCS-CAL-SPECIAL-03-auckland-controller-special-calendar.png?alt=media)

Then set the Calendars. The Default Calendar (Sydney) has the **27th** as a Holiday. The Special Calendar (Auckland) has the **28th** as its Holiday, and the **27th is overridden back to a normal Monday**:

![Side-by-side Default Calendar and Special Calendar Properties. Default Calendar has 27 January as Holiday; Special Calendar has 28 January as Holiday and 27 January set back to a Monday, while both still show 25/26 December as inherited purple holidays](https://328339335-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6bM8WhlBE9BYizPWJaPN%2Fuploads%2Fgit-blob-72ffbd3e371a0392d0be98bdb3cef620ded60b90%2FSECHUB-CCS-CAL-SPECIAL-04-default-vs-special-calendar-comparison.png?alt=media)

The Sydney controller observes the Day Categories in the Default Calendar.

{% hint style="warning" %}
A Special Calendar inherits the Default Calendar’s holidays. In this example, it still shows the purple 25th and 26th of December.

The 27th-of-January holiday is also inherited. Set this date back to a normal Monday on the Special Calendar.
{% endhint %}

You can only alter single days in Special Calendars.


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