BEGIN:VCALENDAR VERSION:2.0 PRODID:-//TX School Calendar//District Calendar//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Austin ISD 2026-2027 Additional Day School Year (ADSY) X-WR-CALDESC:Austin ISD’s 2026-27 ADSY calendar has 18 optional summer da ys and 7 optional Saturdays. See participating schools\, early-release dat es and official PDF. BEGIN:VEVENT UID:aisd-adsy-2026-first-summer-day@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260707 DTEND;VALUE=DATE:20260708 SUMMARY:First Optional Summer ADSY Day DESCRIPTION:School status: optional attendance\nFirst of 18 optional summer ADSY instructional days marked on the PDF.\nSource: https://www.austinisd .org/sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-july-8-9@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260708 DTEND;VALUE=DATE:20260710 SUMMARY:Optional Summer ADSY Days DESCRIPTION:School status: optional attendance\nOptional additional instruc tion for eligible or invited students.\nSource: https://www.austinisd.org/ sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-july-13-16@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260713 DTEND;VALUE=DATE:20260717 SUMMARY:Optional Summer ADSY Days DESCRIPTION:School status: optional attendance\nOptional additional instruc tion for eligible or invited students.\nSource: https://www.austinisd.org/ sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-july-20-23@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260720 DTEND;VALUE=DATE:20260724 SUMMARY:Optional Summer ADSY Days DESCRIPTION:School status: optional attendance\nOptional additional instruc tion for eligible or invited students.\nSource: https://www.austinisd.org/ sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-july-27-30@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260727 DTEND;VALUE=DATE:20260731 SUMMARY:Optional Summer ADSY Days DESCRIPTION:School status: optional attendance\nOptional additional instruc tion for eligible or invited students.\nSource: https://www.austinisd.org/ sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-august-3-5@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260803 DTEND;VALUE=DATE:20260806 SUMMARY:Optional Summer ADSY Days DESCRIPTION:School status: optional attendance\nFinal three optional summer ADSY dates\; new-teacher orientation is also marked.\nSource: https://www .austinisd.org/sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-regular-classes-begin@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260818 DTEND;VALUE=DATE:20260819 SUMMARY:First Day of Regular Classes DESCRIPTION:School status: schools open\nADSY campuses begin the regular 17 5-day calendar on the same date as the district.\nSource: https://www.aust inisd.org/sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:FIRST_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-labor-day@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260907 DTEND;VALUE=DATE:20260908 SUMMARY:Labor Day Holiday DESCRIPTION:School status: no classes\nStudent and staff holiday with no cl asses.\nSource: https://www.austinisd.org/sites/default/files/dept/calenda r/ADSY_Calendar_2026-27.pdf CATEGORIES:HOLIDAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-september-21-early-release@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20260921 DTEND;VALUE=DATE:20260922 SUMMARY:Early Release for Students / Yom Kippur DESCRIPTION:School status: early dismissal\nStudents attend a shortened ins tructional day\; the PDF does not state the dismissal time.\nSource: https ://www.austinisd.org/sites/default/files/dept/calendar/ADSY_Calendar_2026- 27.pdf CATEGORIES:EARLY_RELEASE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-october-3-saturday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261003 DTEND;VALUE=DATE:20261004 SUMMARY:Optional Saturday ADSY Session DESCRIPTION:School status: optional attendance\nOptional Saturday instructi on for eligible or invited students.\nSource: https://www.austinisd.org/si tes/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-first-grading-period-end@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261008 DTEND;VALUE=DATE:20261009 SUMMARY:First Grading Period Ends DESCRIPTION:School status: schools open\nThe first grading period closes be fore the October 9 holiday.\nSource: https://www.austinisd.org/sites/defau lt/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:GRADING_PERIOD_END TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-october-9-weather-makeup@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261009 DTEND;VALUE=DATE:20261010 SUMMARY:Student/Staff Holiday - Bad-Weather Make-up Day DESCRIPTION:School status: conditional attendance\nThe current ADSY PDF mar ks October 9 as a holiday and bad-weather make-up option\; the live ADSY p rogram page lists it among six proposed half-days.\nSource: https://www.au stinisd.org/sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf\nC onflicting official source: https://www.austinisd.org/academics/adsy CATEGORIES:CONDITIONAL_SCHOOL_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-october-12-conference@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261012 DTEND;VALUE=DATE:20261013 SUMMARY:Student Holiday / Parent Conference / Indigenous Peoples’ Day DESCRIPTION:School status: no students\nStudents do not attend regular clas ses\; parent conferences are scheduled.\nSource: https://www.austinisd.org /sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PARENT_CONFERENCE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-november-2-holiday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261102 DTEND;VALUE=DATE:20261103 SUMMARY:Student/Staff Holiday DESCRIPTION:School status: no classes\nThe current ADSY PDF marks November 2 as a Student/Staff Holiday\; the live ADSY program page lists it among s ix proposed half-days.\nSource: https://www.austinisd.org/sites/default/fi les/dept/calendar/ADSY_Calendar_2026-27.pdf\nConflicting official source: https://www.austinisd.org/academics/adsy CATEGORIES:HOLIDAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-november-3-early-release@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261103 DTEND;VALUE=DATE:20261104 SUMMARY:Early Release for Students / Culture of Voting DESCRIPTION:School status: early dismissal\nStudents attend a shortened ins tructional day\; the PDF does not state the dismissal time.\nSource: https ://www.austinisd.org/sites/default/files/dept/calendar/ADSY_Calendar_2026- 27.pdf CATEGORIES:EARLY_RELEASE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-november-7-saturday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261107 DTEND;VALUE=DATE:20261108 SUMMARY:Optional Saturday ADSY Session DESCRIPTION:School status: optional attendance\nOptional Saturday instructi on for eligible or invited students.\nSource: https://www.austinisd.org/si tes/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-fall-break@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261123 DTEND;VALUE=DATE:20261128 SUMMARY:Fall Break DESCRIPTION:School status: no classes\nFive consecutive weekdays with no st udent classes.\nSource: https://www.austinisd.org/sites/default/files/dept /calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:FALL_BREAK TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-december-5-saturday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261205 DTEND;VALUE=DATE:20261206 SUMMARY:Optional Saturday ADSY Session DESCRIPTION:School status: optional attendance\nOptional Saturday instructi on for eligible or invited students.\nSource: https://www.austinisd.org/si tes/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-second-grading-period-end@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261218 DTEND;VALUE=DATE:20261219 SUMMARY:Second Grading Period Ends DESCRIPTION:School status: schools open\nThe second grading period closes b efore winter break.\nSource: https://www.austinisd.org/sites/default/files /dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:GRADING_PERIOD_END TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2026-winter-break@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20261221 DTEND;VALUE=DATE:20270102 SUMMARY:Winter Break DESCRIPTION:School status: no classes\nThe PDF marks December 21 through Ja nuary 1 as winter break.\nSource: https://www.austinisd.org/sites/default/ files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:WINTER_BREAK TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-january-4-staff-development@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270104 DTEND;VALUE=DATE:20270105 SUMMARY:Staff Development / Student Holiday DESCRIPTION:School status: no students\nStudents do not attend on the Monda y after winter break.\nSource: https://www.austinisd.org/sites/default/fil es/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:NON_STUDENT_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-january-9-saturday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270109 DTEND;VALUE=DATE:20270110 SUMMARY:Optional Saturday ADSY Session DESCRIPTION:School status: optional attendance\nOptional Saturday instructi on for eligible or invited students.\nSource: https://www.austinisd.org/si tes/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-mlk-day@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270118 DTEND;VALUE=DATE:20270119 SUMMARY:Martin Luther King Jr. Day Holiday DESCRIPTION:School status: no classes\nStudent and staff holiday with no cl asses.\nSource: https://www.austinisd.org/sites/default/files/dept/calenda r/ADSY_Calendar_2026-27.pdf CATEGORIES:HOLIDAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-february-13-saturday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270213 DTEND;VALUE=DATE:20270214 SUMMARY:Optional Saturday ADSY Session DESCRIPTION:School status: optional attendance\nOptional Saturday instructi on for eligible or invited students.\nSource: https://www.austinisd.org/si tes/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-february-15-early-release@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270215 DTEND;VALUE=DATE:20270216 SUMMARY:Early Release for Students / Presidents’ Day DESCRIPTION:School status: early dismissal\nThe current ADSY PDF marks Febr uary 15 as early release\; the live ADSY program page’s proposed six-hal f-day schedule does not include this date.\nSource: https://www.austinisd. org/sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf\nConflicti ng official source: https://www.austinisd.org/academics/adsy CATEGORIES:EARLY_RELEASE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-march-6-saturday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270306 DTEND;VALUE=DATE:20270307 SUMMARY:Optional Saturday ADSY Session DESCRIPTION:School status: optional attendance\nOptional Saturday instructi on for eligible or invited students.\nSource: https://www.austinisd.org/si tes/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-march-10-conference@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270310 DTEND;VALUE=DATE:20270311 SUMMARY:Student Holiday / Parent Conference / Eid al-Fitr DESCRIPTION:School status: no students\nThe current ADSY PDF marks March 10 as Parent Conference / Student Holiday\; the live ADSY program page lists it among six proposed half-days.\nSource: https://www.austinisd.org/sites /default/files/dept/calendar/ADSY_Calendar_2026-27.pdf\nConflicting offici al source: https://www.austinisd.org/academics/adsy CATEGORIES:PARENT_CONFERENCE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-third-grading-period-end@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270312 DTEND;VALUE=DATE:20270313 SUMMARY:Third Grading Period Ends DESCRIPTION:School status: schools open\nThe third grading period closes Ma rch 12.\nSource: https://www.austinisd.org/sites/default/files/dept/calend ar/ADSY_Calendar_2026-27.pdf CATEGORIES:GRADING_PERIOD_END TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-spring-break@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270315 DTEND;VALUE=DATE:20270320 SUMMARY:Spring Break DESCRIPTION:School status: no classes\nFive consecutive weekdays with no st udent classes.\nSource: https://www.austinisd.org/sites/default/files/dept /calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:SPRING_BREAK TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-march-26-weather-makeup@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270326 DTEND;VALUE=DATE:20270327 SUMMARY:Good Friday Holiday - Bad-Weather Make-up Day DESCRIPTION:School status: conditional attendance\nThe current ADSY PDF mar ks March 26 as a holiday and bad-weather make-up option\; the live ADSY pr ogram page lists it among six proposed half-days.\nSource: https://www.aus tinisd.org/sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf\nCo nflicting official source: https://www.austinisd.org/academics/adsy CATEGORIES:CONDITIONAL_SCHOOL_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-april-3-saturday@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270403 DTEND;VALUE=DATE:20270404 SUMMARY:Optional Saturday ADSY Session DESCRIPTION:School status: optional attendance\nFinal optional Saturday ses sion marked on the ADSY PDF.\nSource: https://www.austinisd.org/sites/defa ult/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:PROGRAM_EXTENDED_DAY TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-april-30-early-release@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270430 DTEND;VALUE=DATE:20270501 SUMMARY:Early Release for Students DESCRIPTION:School status: early dismissal\nThe current ADSY PDF marks Apri l 30 as early release\; the live ADSY program page’s proposed six-half-d ay schedule does not include this date.\nSource: https://www.austinisd.org /sites/default/files/dept/calendar/ADSY_Calendar_2026-27.pdf\nConflicting official source: https://www.austinisd.org/academics/adsy CATEGORIES:EARLY_RELEASE TRANSP:TRANSPARENT END:VEVENT BEGIN:VEVENT UID:aisd-adsy-2027-last-day@txschoolcalendar.com DTSTAMP:20261003T000000Z DTSTART;VALUE=DATE:20270527 DTEND;VALUE=DATE:20270528 SUMMARY:Last Day of Classes DESCRIPTION:School status: schools open\nFinal regular student day and end of the fourth grading period.\nSource: https://www.austinisd.org/sites/def ault/files/dept/calendar/ADSY_Calendar_2026-27.pdf CATEGORIES:LAST_DAY TRANSP:TRANSPARENT END:VEVENT END:VCALENDAR