The whole thing is a labor of love which he's been at for the last nine years. It's a great help if you can't read the original, or even if you can, as the organization of the original leaves something to be desired. Mr. Peattie not only translates the timetable but also reorganizes it for greater ease of use.
He offers a quick reference version which is a free pdf download as well as his full timetable translation which costs $20 for the pdf, more if you want him to print it for you. Worth every penny.