Schedule to block internet access

I would appreciate advice on how to set up a schedule to block internet access during parts of the day. Our family has a network consisting of 3 PCs (Windows XP Pro)- 2 of which are directly connected to a Netgear RP114 router port, and the other through a wireless access point. The Netgear manual is like reading a foreign language to me.
Our teenage daughter is staying up all hours talking with friends and playing online games. Is there a way to set up a schedule to block internet activity?
Thanks for any help you can give me. I know just enough about computers to be dangerous, but would like to attempt this.

 

Went to Netgear's site and they list a RP614 router.
The info on that router indicates that restrictions can be placed on access timewise.
You should have a "Access Restriction" or "Access" page in your router setup utility if your router is similar. If it does, you should have Day & Time listings for blocking access. Hope that helps.

 

Thanks! I will try blocking all internet access using the "." period for set times. I appreciate your help.

 

Just a thought - agof78.
If they realize the restriction is a "time thing", they may be clever enough to change the PC's clock. You should probably make sure they don't have Admin privilege or they can easily defeat your plan.

********ignore -- my router has an internal clock -- ignore **************