Seattle Public Schools 2011-2012 Calendar https://seattlepublicschools.tandem.co/ Key dates for Seattle Public Schools. en-us 9/7/11 First Day of School for Students https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=131 131-seattlepublicschools@intand.com 9/28/11 Professional Development Block Time (2 hour early dismissal) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=132 132-seattlepublicschools@intand.com 10/14/11 Professional Development Day (No school for students) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=133 133-seattlepublicschools@intand.com 10/26/11 Professional Development Block Time (2 hour early dismissal) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=134 134-seattlepublicschools@intand.com 11/11/11 Veterans Day Holiday (No school) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=135 135-seattlepublicschools@intand.com 11/24/11 - 11/25/11 Thanksgiving Holiday (No school) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=136 136-seattlepublicschools@intand.com 12/19/11 - 1/2/12 Winter Break (No school) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=137 137-seattlepublicschools@intand.com 12/25/11 Christmas Holiday https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=138 138-seattlepublicschools@intand.com 1/1/12 New Year's Holiday https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=139 139-seattlepublicschools@intand.com 1/16/12 Martin Luther King Day Holiday (No school) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=140 140-seattlepublicschools@intand.com 1/27/12 Day between semesters https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=141 141-seattlepublicschools@intand.com 2/1/12 Professional Development Block Time (2 hour early dismissal) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=142 142-seattlepublicschools@intand.com 2/20/12 - 2/24/12 Mid-Winter Break (No School) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=144 144-seattlepublicschools@intand.com 2/20/12 Presidents' Day holiday https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=143 143-seattlepublicschools@intand.com 3/7/12 Professional Development Block Time (2 hour early dismissal) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=145 145-seattlepublicschools@intand.com 3/16/12 Professional Development Day https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=146 146-seattlepublicschools@intand.com 4/16/12 - 4/20/12 Spring Break (No school) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=147 147-seattlepublicschools@intand.com 5/16/12 Professional Development Block Time (2 hour early dismissal) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=148 148-seattlepublicschools@intand.com 5/28/12 Memorial Day Holiday (No school) https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=149 149-seattlepublicschools@intand.com 6/20/12 Last Student Day https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=150 150-seattlepublicschools@intand.com 6/21/12 Professional Development Day https://seattlepublicschools.tandem.co/index.php?type=key_date&action=details&id=151 151-seattlepublicschools@intand.com