Assume that you import a holiday file into the calendar in Microsoft Office Outlook 2007. However, when you check the holidays in the calendar, they end in 2012.
To resolve this issue, apply the following hotfix package:
2687329 Description of the Outlook 2007 hotfix package (Outlook-x-none.msp): August 28, 2012
Note This update includes an updated holiday file. Before you apply this update, you should delete any holidays that you previously imported. Otherwise, the calendar will display some duplicated holidays. To delete the existing holidays, follow the steps in the following Microsoft website: