Yes, if you are staying onsite, it is 180 days from your check-in and the next 10 days. Just a warning, a lot of us who have recently done adrs this week, were only able to book the first day and the rest of the days we got the "sorry for the paws" message.. had to call in for the rest at 7am. Not sure what is going on, but the website can be very glitchy. All of the days of my trip showed up and I was able to search times, but when I clicked on the time I wanted, that is when the message would pop up on the screen. Had no problem getting everything we wanted by calling in, and got all the times we needed.