Heute ist das Essen schlechter als gestern.
In this sentence is Heute acting as a noun. I know that it probably wouldn't matter in this sentence, but I am trying to get some grammar into my brain. Danke.
This is a bit off topic, but since I'm grammar challenged...a wonderful resource for explaining German grammar in a way that is easy to follow and understand is: The Everything Learning German Book by Edward Swick. In the book, he gives many examples and explanations. The book is available in many libraries, though I found it so helpful that I bought it. :)
buck72 - I looked at it (The Everything Learning German Book by Edward Swickon) on Amazon and decided to get it. I can add it to all my other German books which I don't use. But, I do intend to use them all at some point; it just takes a lot out of me - due to my learning disorder.