Canvas course sites are open to students during the semester in which they are enrolled in the course. After the semester closes, the site is available to students in a read-only state.
Start and end dates
The start and end dates of course sites are set when the site is created. By default, the start date of a Canvas site is one week prior to the start of the semester. The end date is two weeks after the close of the semester. Instructors may change the start and end dates at their discretion.