It took me 7 hours since I got the book. I walked for 20 minutes after I got out of the bookshop, reading along the way. I read without stopping on the night bus to my house. I only stopped for 10 minutes to post the chortling message from before.
Erm.. yes. I'm done reading Harry Potter and the Half-Blood Prince.
This is by far my favourite book out of all of them.