Restrict Access by Date/Time

1. Click Turn editing on at the top right of your course page


 2. Click Edit settings to the right of the assignment you want to restrict access to.

edit settings 

3. Under the Restrict access heading, click Add restriction.

add restriction 

4. Then click on the Date button.

restrict by date 

5. You can choose a date and time you want the assignment to be available from, or a date you want it to be available until (or both, by adding another restriction).

 access by date

6. Save changes.