Mercer Island School District 2015-2016 Calendar https://mercerisland.tandem.co/ Key dates for Mercer Island School District. en-us 9/7/15 Labor Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=109 109-mercerisland@intand.com 9/8/15 First Day of School https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=194 194-mercerisland@intand.com 10/12/15 Columbus Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=110 110-mercerisland@intand.com 10/31/15 Halloween https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=111 111-mercerisland@intand.com 11/1/15 Daylight Saving Time Ends https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=113 113-mercerisland@intand.com 11/11/15 Veteran's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=112 112-mercerisland@intand.com 11/26/15 Thanksgiving https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=114 114-mercerisland@intand.com 11/26/15 - 11/27/15 Thanksgiving Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=195 195-mercerisland@intand.com 12/21/15 - 1/1/16 Christmas Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=196 196-mercerisland@intand.com 12/25/15 Christmas Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=115 115-mercerisland@intand.com 1/1/16 New Year's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=116 116-mercerisland@intand.com 1/18/16 Martin Luther King Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=117 117-mercerisland@intand.com 2/14/16 Valentine's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=118 118-mercerisland@intand.com 2/15/16 President's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=119 119-mercerisland@intand.com 2/15/16 - 2/19/16 Winter Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=197 197-mercerisland@intand.com 3/13/16 Daylight Saving Time Begins https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=120 120-mercerisland@intand.com 3/17/16 St. Patrick's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=121 121-mercerisland@intand.com 3/27/16 Easter https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=122 122-mercerisland@intand.com 4/11/16 - 4/15/16 Spring Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=198 198-mercerisland@intand.com 5/5/16 Cinco De Mayo https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=123 123-mercerisland@intand.com 5/30/16 Memorial Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=124 124-mercerisland@intand.com 6/23/16 Last Day of School https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=199 199-mercerisland@intand.com 7/4/16 Independence Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=125 125-mercerisland@intand.com