You can adjust the timer settings for a student's assessment attempts in the Quizzes LTI. Timer settings apply to all course assessment attempts for the student.
You can add a specific amount of minutes or hours to each attempt, multiply time limits by a set multiplier, or remove time limit requirements. Only one timer setting can be selected for each student.
Adjust Timer Settings
The student's Moderation settings will display on the page .
To adjust the timer settings for the student, click the Adjust Timer Settings checkbox .
Add Additional Time
To add additional time to all assessment attempts, click the Additional Time button . Then select the amount of time  and the unit of time . Time units can be set to minutes or hours.
Add Time Limit Multiplier
To add a time limit multiplier, click the Time Limit Multiplier button . Then enter the multiplier in the x timer limit field .