Does a user require a special role or privilege to work with the User & Time Management plugin?

Does a user require a special role or privilege to work with the User & Time Management plugin?

Yes, a user to be able to create and define staff roster must either be an Admin or a User who has been assigned Full Access to the Time and Attendance master. 

You can always navigate to Home > Setup > User Management > Roles to check the permissions assigned to your role.