Here is the approved 2012-2013 Stamford Public School Calendar with all the planned days your students will have off this year and the official schedule for report cards and marking periods. . Students will attend for 181 days, staff will attend for 186.
You can click the PDF file above to see a large version of the calendar, or download your own copy here on the Stamford Public Schools website. The same goes for the report card schedule, which can be downloaded here.