William S. Hart Union High 2018-2019 Calendar https://williams.tandem.co/ Key dates for William S. Hart Union High. en-us 8/16/18 First Day of School https://williams.tandem.co/index.php?type=key_date&action=details&id=344 344-williams@intand.com 9/3/18 Labor Day https://williams.tandem.co/index.php?type=key_date&action=details&id=327 327-williams@intand.com 10/1/18 - 10/2/18 Fall Break https://williams.tandem.co/index.php?type=key_date&action=details&id=345 345-williams@intand.com 10/8/18 Columbus Day https://williams.tandem.co/index.php?type=key_date&action=details&id=328 328-williams@intand.com 10/31/18 Halloween https://williams.tandem.co/index.php?type=key_date&action=details&id=329 329-williams@intand.com 11/4/18 Daylight Saving Time Ends https://williams.tandem.co/index.php?type=key_date&action=details&id=331 331-williams@intand.com 11/11/18 Veteran's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=330 330-williams@intand.com 11/12/18 No School - Students Teachers Holiday https://williams.tandem.co/index.php?type=key_date&action=details&id=346 346-williams@intand.com 11/22/18 Thanksgiving https://williams.tandem.co/index.php?type=key_date&action=details&id=332 332-williams@intand.com 11/22/18 - 11/23/18 Thanksgiving Day https://williams.tandem.co/index.php?type=key_date&action=details&id=347 347-williams@intand.com 12/21/18 No School - Teacher Work Day https://williams.tandem.co/index.php?type=key_date&action=details&id=349 349-williams@intand.com 12/24/18 - 1/11/19 Winter Holiday Break https://williams.tandem.co/index.php?type=key_date&action=details&id=348 348-williams@intand.com 12/25/18 Christmas Day https://williams.tandem.co/index.php?type=key_date&action=details&id=333 333-williams@intand.com 1/1/19 New Year's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=334 334-williams@intand.com 1/21/19 Martin Luther King Day https://williams.tandem.co/index.php?type=key_date&action=details&id=335 335-williams@intand.com 2/14/19 Valentine's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=336 336-williams@intand.com 2/15/19 No School - Non Student Day https://williams.tandem.co/index.php?type=key_date&action=details&id=350 350-williams@intand.com 2/18/19 President's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=337 337-williams@intand.com 3/10/19 Daylight Saving Time Begins https://williams.tandem.co/index.php?type=key_date&action=details&id=338 338-williams@intand.com 3/17/19 St. Patrick's Day https://williams.tandem.co/index.php?type=key_date&action=details&id=339 339-williams@intand.com 4/1/19 - 4/5/19 Spring Break https://williams.tandem.co/index.php?type=key_date&action=details&id=351 351-williams@intand.com 4/21/19 Easter https://williams.tandem.co/index.php?type=key_date&action=details&id=340 340-williams@intand.com 5/5/19 Cinco De Mayo https://williams.tandem.co/index.php?type=key_date&action=details&id=341 341-williams@intand.com 5/27/19 Memorial Day https://williams.tandem.co/index.php?type=key_date&action=details&id=342 342-williams@intand.com 6/6/19 Last Day of School https://williams.tandem.co/index.php?type=key_date&action=details&id=352 352-williams@intand.com 7/4/19 Independence Day https://williams.tandem.co/index.php?type=key_date&action=details&id=343 343-williams@intand.com