It’s easy to configure your Moodle quiz to allow individual to access them at different time or for different amount of time. This can be useful in several ways, such as:

1. to meet accommodations for extra-time or extra quiz attempts
   
2. to open and close a quiz at different time for a user
   

Step 1: In your Moodle course, click on your quiz activity.

Step 2: In the Quiz Administration option, click More, then Overrides.

Step 3: From Override screen, click Add user override.

Step 4: From the Override screen, select the user you need to add an override for. Next, configure your override settings. You can override the open and close dates, the time limit, and the number of attempts allowed. Make sure to check the Enable checkbox next to each setting if you want to override it. Click Save once done or click Save and enter another override.