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Navigate to the Holidays grid. Admin > System Tables > Holidays.
To add a new holiday to the grid, click the
button located immediately above the grid.In the Holiday data entry form, define the new holiday by specific date or by iterated weekday.
For holidays with dates that don't change from year-to-year (July 4...), input a specific date by selecting the appropriate Month and Day.
For holidays with dates that vary from year-to-year (Thanksgiving...), select the Iterated Weekday option and input the date by Week, Day, and Time. Consider the example posed by Thanksgiving. In this instance, the appropriate input would be 4th, Thursday, November.
Once all required fields have been satisfied, click the
Save New button located at the bottom of the Holiday data entry form. The new holiday appears as an item on the grid.
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Admin Users can edit holidays by double-clicking on any item on the Holidays grid, or select an item and click the 
button located immediately above the grid.
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Admin Users can delete existing holidays by selecting the appropriate item on the Holidays grid and clicking the
button located immediately above the grid. The deleted holiday no longer appears as an item on the Holidays grid.