restricting users during certain times/days

From: Mike Cox (mikecoxlinux_at_yahoo.com)
Date: 02/02/04 

Date: Mon, 02 Feb 2004 14:27:46 -0800

Is it possible to control the times or days a user is allowed to login?
For example, if you only want a user to be able to login during the
weekdays. How would you set that up?