Download the 2025-2026 Academic Calendar (ICS).
NIU's President, with the endorsement of University Council, approves the university holiday schedule. Download the 2026 NIU Holiday Calendar file (ICS).
Mac and Windows
- Go to go.niu.edu/m365 > Outlook > Calendar
- Select Add Calendar > Upload From file
- Select the .ics file > Import
or
- In Outlook > File > Open & Export > Import/Export
- Select Import an iCalendar (.ics) or vCalendar file (.vcs) > Next
- Select the .ics file > Import
Instructions for "New Outlook"
- Select the Calender tab.
- Underneath the monthly calendar view, select the Add Calendar icon.
- Select Upload from file.
- Select Browser
- Select the calendar you wish to upload.
- Select Import.