Williamson County School District 2019-2020 Calendar http://williamsoncounty.tandem.co/ Key dates for Williamson County School District. en-us 7/31/19 - 8/1/19 New Teacher Induction http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=379 379-williamsoncounty@intand.com 8/2/19 Administrative Day (All Teachers Report) http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=380 380-williamsoncounty@intand.com 8/5/19 District-Wide Professional Development Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=381 381-williamsoncounty@intand.com 8/6/19 - 8/7/19 Site-Based Professional Development Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=382 382-williamsoncounty@intand.com 8/8/19 Administrative Day (All Teachers Work in Classroom) http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=383 383-williamsoncounty@intand.com 8/9/19 First Day of School (1st – 12th Grades) http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=384 384-williamsoncounty@intand.com 9/2/19 Labor Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=362 362-williamsoncounty@intand.com 9/17/19 Constitution Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=385 385-williamsoncounty@intand.com 10/9/19 End of First Quarter Grading Period http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=386 386-williamsoncounty@intand.com 10/10/19 - 10/11/19 Fall Break http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=387 387-williamsoncounty@intand.com 10/14/19 Columbus Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=363 363-williamsoncounty@intand.com 10/31/19 Halloween http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=364 364-williamsoncounty@intand.com 11/3/19 Daylight Saving Time Ends http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=366 366-williamsoncounty@intand.com 11/5/19 Election Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=388 388-williamsoncounty@intand.com 11/11/19 Veteran's Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=365 365-williamsoncounty@intand.com 11/25/19 - 11/29/19 Thanksgiving http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=367 367-williamsoncounty@intand.com 12/19/19 End of First Semester http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=474 474-williamsoncounty@intand.com 12/20/19 Administrative Day (All Teachers Work in Classroom) http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=475 475-williamsoncounty@intand.com 12/23/19 - 1/3/20 Winter Break http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=476 476-williamsoncounty@intand.com 12/25/19 Christmas Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=368 368-williamsoncounty@intand.com 1/1/20 New Year's Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=369 369-williamsoncounty@intand.com 1/6/20 Students & Teachers Return http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=477 477-williamsoncounty@intand.com 1/20/20 Martin Luther King Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=370 370-williamsoncounty@intand.com 2/14/20 Valentine's Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=371 371-williamsoncounty@intand.com 2/17/20 President's Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=372 372-williamsoncounty@intand.com 3/3/20 Site-Based Professional Development Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=478 478-williamsoncounty@intand.com 3/8/20 Daylight Saving Time Begins http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=373 373-williamsoncounty@intand.com 3/11/20 End of Third Quarter Grading Period http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=479 479-williamsoncounty@intand.com 3/16/20 - 3/20/20 Spring Break http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=480 480-williamsoncounty@intand.com 3/17/20 St. Patrick's Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=374 374-williamsoncounty@intand.com 4/10/20 Spring Holiday http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=481 481-williamsoncounty@intand.com 4/12/20 Easter http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=375 375-williamsoncounty@intand.com 5/5/20 Cinco De Mayo http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=376 376-williamsoncounty@intand.com 5/21/20 Last Day of School http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=482 482-williamsoncounty@intand.com 5/22/20 Administrative Day for Teachers http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=483 483-williamsoncounty@intand.com 5/25/20 Memorial Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=377 377-williamsoncounty@intand.com 7/4/20 Independence Day http://williamsoncounty.tandem.co/index.php?type=key_date&action=details&id=378 378-williamsoncounty@intand.com