If you use the Calendar feature in Outlook to keep track of your important meetings and events as well as birthdays and anniversaries for friends and family, you may want to add holidays to the calendar as well.
Adding holidays for many countries and religions is easy. To start, click the File tab.
Click Options in the menu list on the left side of the Account Information screen.
On the Outlook Options dialog box, click Calendar in the menu list on the left.
In the Calendar options section, click Add Holidays.
The Add Holidays to Calendar dialog box displays. Select the check boxes for the countries and/or religions whose holidays you want to add to your calendar. Click OK.
A progress dialog box displays for a time as the holidays are added to the calendar. It might take a while depending on how many countries and/or religions you selected. When the holidays have all been added, a confirmation dialog box displays. Click OK to close it.
You are brought back to the Outlook Options dialog box. Click OK to close it.
Move your mouse over the Calendar icon on the Navigation bar at the bottom of the folder pane on the left. The current month pops up and the current and upcoming holidays are listed. Click the Calendar button to access your calendars.
The holidays are displayed on the calendar as pictured in the image at the beginning of this article. The holidays also display in other calendar views such as Day, Work Week, Week, or Month.