This is easiest to manage if you put all your Holidays in one exception.
To do that, go to the Administrator,
Select the Business tab on the Left and the Exception Hrs tab on the right Under the Exception Detail screen, click the Add Button Enter a Name, such as 2013 Holidays Click the Add Date button and choose the first Holiday (For example, January 1) Holding the control key down, scroll through the calendar and select all other dates for which your business will close Click the Save Date button under the calendar Click the Save button at the lower right
The image below shows what you should see after all your dates are entered. In the Dates and times window, you will see a list of all your holidays and the word "closed" after the dates. You can check this list to make sure all your dates have been entered correctly.