some of the tournaments in the calendar posted are incorrect. this is the 2011 calendar, but in 2012, the calendar is very screwed up because of the Olympics, and Montpelier and Bucharest moving earlier in the year. Montpelier is actually taking place in January starting the 30th. I will send you the link to the 2012 schedule.
This link will take you to the ATP 2011 schedule. On the top of the page is a link to download the 2011-2013 calendars in a pdf file. The 2012 schedule is listed by date and is grouped by week so it is easy to tell which tournaments take place in the same week