Final answer:
To set login time restrictions in Active Directory Users and Computers tool, access the 'Account' tab where you will find the option to specify logon hours.
Step-by-step explanation:
You need to set login time restrictions for an Active Directory user account using the Active Directory Users and Computers tool. To do this, you should go to the Account tab where you can set logon hours or login time restrictions for the user. Once in the Account tab, you will find the option to define the permitted logon hours. You cannot set login time restrictions from the General, Profile, or Logon Hours tabs, as these serve other functions such as displaying basic user information, setting user profile paths, and specifying scripts, respectively.