Arlington Central School District 2009-2010 Calendar https://acsdny.tandem.co/ Key dates for Arlington Central School District. en-us 9/7/09 Labor Day https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1968 1968-acsdny@intand.com 9/9/09 School Opens https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1970 1970-acsdny@intand.com 9/28/09 Recess Day https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1971 1971-acsdny@intand.com 10/12/09 Columbus Day https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1972 1972-acsdny@intand.com 11/25/09 - 11/27/09 Thanksgiving Recess https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1975 1975-acsdny@intand.com 12/24/09 - 1/1/10 Holiday Recess https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1976 1976-acsdny@intand.com 1/18/10 Martin Luther King Jr. Day https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1977 1977-acsdny@intand.com 1/26/10 - 1/29/10 Regents Exams, HS Students Attend For Exams Only https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1985 1985-acsdny@intand.com 2/15/10 Presidents Day https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1986 1986-acsdny@intand.com 3/29/10 - 4/2/10 Spring Recess https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1980 1980-acsdny@intand.com 4/23/10 Staff Development Day https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1981 1981-acsdny@intand.com 5/31/10 Memorial Day https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1982 1982-acsdny@intand.com 6/15/10 - 6/24/10 Regents Exams, HS Students Attend For Exams Only https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1987 1987-acsdny@intand.com 6/27/10 High School Graduation https://acsdny.tandem.co/index.php?type=key_date&action=details&id=1984 1984-acsdny@intand.com