I have a great function the calculates the Delta time between forum posts regarding "Delta Time".
http://www.google.co.uk/search?q=deltatime+site%3Ablitzbasic.com&start=0&ie=utf-8&oe=utf-8
http://blitzbasic.com/Community/posts.php?topic=49306
http://www.google.co.uk/search?q=deltatime+site%3Ablitzbasic.com&start=0&ie=utf-8&oe=utf-8
http://blitzbasic.com/Community/posts.php?topic=49306