The Time display at upper right tells how much time is left for the test. You can show or hide the clock as desired, by clicking "Time".
The ParaPro Assessment is 2 hours, 30 minutes long, so the clock counts down from 2:30:00. The time cannot be paused once it has started.
When only 10 minutes remain for the test, the clock will appear and stay on screen to the end of the test. The Time button will become inactive.