User blog comment:SallyPerson/Trying to be Precise.../@comment-1886094-20101125154707

Last Olympian is definitely not 2010, its before that. And LT is 2005 or 2006. Most likely 2005, but then if you coincide all the dates in the book to a real life calendar of the year, (like school days, and the day of Solstice) then its more similar to the 2006 calendar.