Help needed: How to make an ACL that only works some times of the day

I what to make an ACL that prevents users from accessing URLs that contain
the word "game" during working hours. Outside working hours they may access
them.

I have found out how to prevent it all the time, but not only during
working hours.

Can someone please show me how to do that?

And is it possible to attach a message saying that "this URL is not
available during work hours"?
Received on Mon Mar 02 1998 - 13:19:32 MST