You can only restrict when a user can log on to the system. On a stand alone computer, there is no way, currently, to force a user to log off when their hours expire.
1) Open Help and Support and type "logon hours" (without the quotes) in the search box.2) Go to Full text matches and click on "Net user". See the examples for setting a user's logon hours. Some examples would be:
net user johnsw /time:M-F,08:00-17:00net user johnsw /time:M-F,8am-5pmnet user marysl /time:M,4am-5pm;T,1pm-3pm;W-F,8:00-17:00net user johnsw /time:all (this one means this user can always log on)
3) Open a Command Prompt window.4) Enter the appropriate "net user" command for the user(s) you wish to restrict access for.