Access Times on TG582n

[#1]

Greetings
How do I set/control internet access times for certain devices on the TH582n router?
i.e. no internet access on kids devices only from 10pm to 7am.
Thanks
Peter

[#2]

This will help:
http://npr.me.uk/accesscontrol.html

[#3]

If you're on some of the latest firmware, you can set it all up from the router's homepage