South Texas Isd 2015-2016 Calendar https://southtexasisd.tandem.co/ Key dates for South Texas Isd. en-us 8/24/15 First Day of School https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=127 127-southtexasisd@intand.com 9/7/15 Labor Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=91 91-southtexasisd@intand.com 10/12/15 Columbus Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=92 92-southtexasisd@intand.com 10/31/15 Halloween https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=93 93-southtexasisd@intand.com 11/1/15 Daylight Saving Time Ends https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=95 95-southtexasisd@intand.com 11/11/15 Veteran's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=94 94-southtexasisd@intand.com 11/25/15 - 11/27/15 Thanksgiving Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=128 128-southtexasisd@intand.com 11/26/15 Thanksgiving https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=96 96-southtexasisd@intand.com 12/21/15 - 1/1/16 Christmas Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=129 129-southtexasisd@intand.com 12/25/15 Christmas Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=97 97-southtexasisd@intand.com 1/1/16 New Year's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=98 98-southtexasisd@intand.com 1/18/16 Martin Luther King Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=99 99-southtexasisd@intand.com 2/14/16 Valentine's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=100 100-southtexasisd@intand.com 2/15/16 President's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=101 101-southtexasisd@intand.com 3/13/16 Daylight Saving Time Begins https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=102 102-southtexasisd@intand.com 3/14/16 - 3/18/16 Spring Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=130 130-southtexasisd@intand.com 3/17/16 St. Patrick's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=103 103-southtexasisd@intand.com 3/27/16 Easter https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=104 104-southtexasisd@intand.com 5/5/16 Cinco De Mayo https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=105 105-southtexasisd@intand.com 5/30/16 Memorial Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=106 106-southtexasisd@intand.com 6/2/16 Last Day of School https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=131 131-southtexasisd@intand.com 7/4/16 Independence Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=107 107-southtexasisd@intand.com