Mercer Island School District 2018-2019 Calendar https://mercerisland.tandem.co/ Key dates for Mercer Island School District. en-us 9/3/18 Labor Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=160 160-mercerisland@intand.com 9/5/18 First Day of School https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=200 200-mercerisland@intand.com 10/8/18 Columbus Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=161 161-mercerisland@intand.com 10/31/18 Halloween https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=162 162-mercerisland@intand.com 11/4/18 Daylight Saving Time Ends https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=164 164-mercerisland@intand.com 11/11/18 Veteran's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=163 163-mercerisland@intand.com 11/12/18 No School - Veterans Day No School for Students or Staff https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=201 201-mercerisland@intand.com 11/19/18 - 11/21/18 No School for Elementary Students - Elementary Conferences https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=202 202-mercerisland@intand.com 11/22/18 Thanksgiving https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=165 165-mercerisland@intand.com 11/22/18 - 11/23/18 Thanksgiving Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=203 203-mercerisland@intand.com 12/24/18 - 1/4/19 Winter Holiday Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=204 204-mercerisland@intand.com 12/25/18 Christmas Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=166 166-mercerisland@intand.com 1/1/19 New Year's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=167 167-mercerisland@intand.com 1/21/19 Martin Luther King Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=168 168-mercerisland@intand.com 2/14/19 Valentine's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=169 169-mercerisland@intand.com 2/18/19 - 2/22/19 Mid Winter Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=205 205-mercerisland@intand.com 2/18/19 President's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=170 170-mercerisland@intand.com 3/10/19 Daylight Saving Time Begins https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=171 171-mercerisland@intand.com 3/11/19 No School - Scheduled Weather Makeup Day No School for Students or Staff https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=206 206-mercerisland@intand.com 3/17/19 St. Patrick's Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=172 172-mercerisland@intand.com 4/8/19 - 4/12/19 Spring Break https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=207 207-mercerisland@intand.com 4/21/19 Easter https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=173 173-mercerisland@intand.com 5/5/19 Cinco De Mayo https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=174 174-mercerisland@intand.com 5/24/19 No School - Scheduled Weather Makeup Day No School for Students or Staff https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=208 208-mercerisland@intand.com 5/27/19 Memorial Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=175 175-mercerisland@intand.com 6/20/19 Last Day of School https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=209 209-mercerisland@intand.com 7/4/19 Independence Day https://mercerisland.tandem.co/index.php?type=key_date&action=details&id=176 176-mercerisland@intand.com