If you need to update the dates for the current term, open the Settings menu at the top of the main course page. Locate the field in the General options area labeled Course start date. Use the pull-down menus to set the desired day, month and year for the course start date or use the calendar on the right to insert the date. Scroll to the bottom of the page and Save changes.

Course end dates are set for finals week plus six days to leave courses in their “in progress” status through the grade submission deadline. Once the course end date arrives, course status shifts to “past.” Please do not disable the course end date as that places the course in perpetual “in progress” status and clutters up student dashboards. Your course can still remain available to students, but it should be correctly labeled as “past” when the term ends.

See this article for for details on adjusting course sections along with term dates.