Closing your library requires entering the dates for closure in the Sierra Days closed table. Sierra maintains a comprehensive list of the scheduled closed dates by library. It is viewable by most logins and even editable by Directors. Only one user can edit the table at a time, so please save and close the table soon after your entries are in.
Sierra uses the Days Closed table in the following ways:
If you do not wish to edit the table yourself you can submit the Days Closed Form on kb.midhudson.org (see exactly where below), and MHLS techsupport staff will enter your dates for you. The form is updated for 2020.