Click the down arrow to the right of the assignment and then select “Adaptive Release”.
Select a date for the “Display Unitl” option.
Below the membership section, click the “Browse” Button.
Select the student you want to give more time for the assignment.
Click the “Submit” button.
Click the “Submit” Button.
Note: Now only that student has access to the assignment up to the date you specified display Until date and time.