William S. Hart Union High 2015-2016 Calendar https://williams.tandem.co/ Key dates for William S. Hart Union High. en-us 9/1/15 First Day of School https://williams.tandem.co/index.php?type=key_date&action=details&id=306 306-williams@intand.com 9/7/15 Labor Day https://williams.tandem.co/index.php?type=key_date&action=details&id=289 289-williams@intand.com 10/5/15 - 10/6/15 Fall Break https://williams.tandem.co/index.php?type=key_date&action=details&id=307 307-williams@intand.com 10/12/15 Columbus Day https://williams.tandem.co/index.php?type=key_date&action=details&id=290 290-williams@intand.com 10/31/15 Halloween https://williams.tandem.co/index.php?type=key_date&action=details&id=291 291-williams@intand.com 11/1/15 Daylight Saving Time Ends https://williams.tandem.co/index.php?type=key_date&action=details&id=293 293-williams@intand.com 11/11/15 Veteran's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=292 292-williams@intand.com 11/26/15 - 11/27/15 Thanksgiving Break https://williams.tandem.co/index.php?type=key_date&action=details&id=294 294-williams@intand.com 12/21/15 - 12/25/15 Christmas Break https://williams.tandem.co/index.php?type=key_date&action=details&id=295 295-williams@intand.com 1/1/16 New Year's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=296 296-williams@intand.com 1/18/16 Martin Luther King Day https://williams.tandem.co/index.php?type=key_date&action=details&id=297 297-williams@intand.com 2/14/16 Valentine's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=298 298-williams@intand.com 2/15/16 President's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=299 299-williams@intand.com 3/13/16 Daylight Saving Time Begins https://williams.tandem.co/index.php?type=key_date&action=details&id=300 300-williams@intand.com 3/17/16 St. Patrick's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=301 301-williams@intand.com 3/27/16 Easter https://williams.tandem.co/index.php?type=key_date&action=details&id=302 302-williams@intand.com 4/4/16 Spring Break https://williams.tandem.co/index.php?type=key_date&action=details&id=308 308-williams@intand.com 5/5/16 Cinco De Mayo https://williams.tandem.co/index.php?type=key_date&action=details&id=303 303-williams@intand.com 5/30/16 Memorial Day https://williams.tandem.co/index.php?type=key_date&action=details&id=304 304-williams@intand.com 6/2/16 Last Day of School https://williams.tandem.co/index.php?type=key_date&action=details&id=309 309-williams@intand.com 7/4/16 Independence Day https://williams.tandem.co/index.php?type=key_date&action=details&id=305 305-williams@intand.com