Collier County School District 2014-2015 Calendar https://colliercounty.tandem.co/ Key dates for Collier County School District. en-us 8/18/14 Student Start date https://colliercounty.tandem.co/index.php?type=key_date&action=details&id=319 319-colliercounty@intand.com 11/26/14 - 11/28/14 Fall Break/Schools and District Offices Closed https://colliercounty.tandem.co/index.php?type=key_date&action=details&id=320 320-colliercounty@intand.com 12/22/14 - 1/2/15 Winter Break https://colliercounty.tandem.co/index.php?type=key_date&action=details&id=321 321-colliercounty@intand.com 3/16/15 - 3/20/15 Spring Break - No School Tchrs & Students https://colliercounty.tandem.co/index.php?type=key_date&action=details&id=322 322-colliercounty@intand.com 6/4/15 Last Day of Student https://colliercounty.tandem.co/index.php?type=key_date&action=details&id=323 323-colliercounty@intand.com