I found a way to create an RSS Feed from web pages with RSS Feeds (if that makes sense)

It's using GoodReader and FeedBurner by following the steps on this site:

Tutorial: Create RSS Feeds for your Website

It's pretty old information but still the steps work well for me.

My only problem is I want the content to update if the webpage does, so the feed is dynamic but this will not work or at least I cannot find a way for it to work.

Does anyone know a way round this.

Example of problem:

I want to create an rss feed to the time table on this page - Timetable
when they update that time table I want my feed to update too, even if it's a 30 minute delay.

If you need more info, please let me know