South Texas Isd 2018-2019 Calendar https://southtexasisd.tandem.co/ Key dates for South Texas Isd. en-us 8/20/18 First Day of School https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=166 166-southtexasisd@intand.com 9/3/18 Labor Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=149 149-southtexasisd@intand.com 10/8/18 Columbus Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=150 150-southtexasisd@intand.com 10/12/18 End of 1st Grade Reporting Period https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=167 167-southtexasisd@intand.com 10/15/18 No School - Teacher Work Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=168 168-southtexasisd@intand.com 10/31/18 Halloween https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=151 151-southtexasisd@intand.com 11/4/18 Daylight Saving Time Ends https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=153 153-southtexasisd@intand.com 11/11/18 Veteran's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=152 152-southtexasisd@intand.com 11/19/18 - 11/23/18 Thanksgiving Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=169 169-southtexasisd@intand.com 11/22/18 Thanksgiving https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=154 154-southtexasisd@intand.com 11/26/18 No School - Instructional Design Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=171 171-southtexasisd@intand.com 12/3/18 - 12/7/18 STAAR, AP, & IB Assessment Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=172 172-southtexasisd@intand.com 12/13/18 - 12/14/18 Exam Preparation Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=173 173-southtexasisd@intand.com 12/20/18 End of 2nd Grade Reporting Period https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=174 174-southtexasisd@intand.com 12/21/18 - 1/4/19 Winter Holiday Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=170 170-southtexasisd@intand.com 12/25/18 Christmas Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=155 155-southtexasisd@intand.com 1/1/19 New Year's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=156 156-southtexasisd@intand.com 1/7/19 No School - Teacher Work Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=175 175-southtexasisd@intand.com 1/21/19 Martin Luther King Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=157 157-southtexasisd@intand.com 2/14/19 Valentine's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=158 158-southtexasisd@intand.com 2/18/19 President's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=159 159-southtexasisd@intand.com 3/7/19 End of 3rd Grade Reporting Period https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=176 176-southtexasisd@intand.com 3/8/19 No School - Instructional Design Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=177 177-southtexasisd@intand.com 3/10/19 Daylight Saving Time Begins https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=160 160-southtexasisd@intand.com 3/11/19 - 3/15/19 Spring Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=178 178-southtexasisd@intand.com 3/17/19 St. Patrick's Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=161 161-southtexasisd@intand.com 4/8/19 - 4/12/19 STAAR, AP, & IB Assessment Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=179 179-southtexasisd@intand.com 4/19/19 No School - Easter Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=180 180-southtexasisd@intand.com 4/21/19 Easter https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=162 162-southtexasisd@intand.com 4/22/19 No School - Easter Break https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=181 181-southtexasisd@intand.com 5/5/19 Cinco De Mayo https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=163 163-southtexasisd@intand.com 5/6/19 - 5/10/19 STAAR, AP, & IB Assessment Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=182 182-southtexasisd@intand.com 5/13/19 - 5/17/19 STAAR, AP, & IB Assessment Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=183 183-southtexasisd@intand.com 5/23/19 - 5/24/19 Exam Preparation Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=184 184-southtexasisd@intand.com 5/27/19 Memorial Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=164 164-southtexasisd@intand.com 5/31/19 End of 4th Grade Reporting Period https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=185 185-southtexasisd@intand.com 5/31/19 Last Day of School https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=186 186-southtexasisd@intand.com 7/4/19 Independence Day https://southtexasisd.tandem.co/index.php?type=key_date&action=details&id=165 165-southtexasisd@intand.com