Follow below the steps to schedule a test:

1. Click on the "Time Setting" option under "Contest Details".

2. Enter duration(date & time) for the test and save it

3. To publish the test click on "Publish Test"

4. To start the registration for the test click on "Registration On"

5. To make the test live, publish at least the first round.

6. Then click on the "Live Test" option to start the participation in the test.