Holidays and Announcements are non-event, non-academic calendar items that appear on the calendar views and grids. Examples include standard or school holidays (Thanksgiving, Spring Break), and general campus announcements or items of interest (First day of registration, Mid-term exams, classes cancelled due to inclement weather). These items are displayed at the top of the calendar views as an all-day activity, on the grid views as shaded cells, and on the list view as a line item.
Holidays allow scheduling rules to be defined either to allow or prevent the scheduling of additional course sections or events during the holiday date(s) specified. Announcements are simply items that are highlighted on a calendar view on a specific date.