This makes sense yes, but I wouldn't use it as a sentence on its own. You could perhaps say: "I usually read from eight until nine" or "My reading time is from eight until nine"

I think that sentence is OK if you are using it in an informal setting, like talking to a friend or family member. If you are doing formal writing, like for a legal reason, you would probably want to use something different. I think Kyle's suggestion works well for formal situations, or for any time when clarity is more important than speed.