Anyone know a hack to show all posts made within last 3 hours (not days)?

[Still Waters]

Anyone know if there's a hack that shows all posts made within the last x hours? For example, the following link shows all posts made within the last 3 days. But, I need hours. Thanks.


<a href="http://www.communityonthe.net/board/search.php?action=getdaily&days=3&s=$session[sessionhash]">
View Posts Made within Last 3 Days
</a>

[Still Waters]

Anyone, please? :)