Click on "Edit Holidays Hours" link. From here, you can select which holidays are observed by the selected office. For each holiday observed, the office may have special hours that day, or may be set as Closed All Day. Once a holiday is observed, the setting will recur yearly; it may be edited, but does not need to be configured again each year.

Note that some holidays have both an actual date and an observed date (Obs) listed. In most cases only the Obs date should be used; when the holiday falls on a Sunday, generally it is observed on Monday, as far as office closings. If the holiday falls on a weekday, the Obs date will be the same as the actual date, so there is no need to also set up the actual holiday date as observed.

Once you're finished, you can click the "Done Editing" link to return back to the Office Hours Report.