how do I change the start and end dates for a course?

In Course Navigation, click the Settings link.

Click the Course Details tab.

Click the Starts calendar icon [1]. Click a new start date for the course [2].

Click the Ends calendar icon [1]. Click a new end date for the course [2].

Note: In your end date, if you do not set a time, or you set the end time to midnight, a warning icon displays notifying you that the date prior to the set end date will be the last available day in the course. For instance, if the course were set to end September 3, the last full available date for the course would be September 2.

If you do not want to let students participate in the course outside of the course dates, select the Users can only participate in the course between these dates checkbox. Selecting this checkbox creates a course override for the term dates and tells Canvas to conclude the course on the course end date.

Note: If this checkbox is not selected, students can participate in the course before and after the start and end date, and participation will still be determined by the term dates.

Click the Update Course Details button.