Houston ISD School Holidays
2018
- August 27 – First Day of School
- September 3 – Labor Day
- September 10 – Fall Holiday
- November 19 – 23 – Thanksgiving
Winter Break
- December 24 – January 4, 2019
2019
- January 21 – Martin Luther King Day
- March 11 – 15 – Spring Break
- April 19 – Spring Holiday
- May 27 – Memorial Day
- May 31 – Last Day of School
K12 School Applications & Testing
2018
- November 10 – Popular ISEE Test Date 1
- December 7 – HISD Magnet Deadline (projected)
- December 14 – Common Private School Deadline
2019
- January 14 – Common Private School Deadline
- January 26 – Popular ISEE Test Date 2
- February 9 – Last Duke TIP ACT Date
- March 8 – Private School Application Status Available (projected)
- March 21 – HISD Application Magnet Status Available (projected)
- April 4 – HISD Magnet Offer Deadline to Accept (projected)
View more ISEE test dates and locations
College Applications & Testing
2018
- August 25 – SAT
- September 8 – ACT
- October 6 – SAT
- October 10 or 13 – PSAT (Juniors)
- October 27 – ACT
- November 1 – Common Early Decision Deadline
- November 3 – SAT
- December 1 – SAT (Last Date for Seniors)
- December 8 – ACT (Last Date for Seniors)
2019
- January 1 – Common Regular Decision Deadline
- February 9 – ACT
- March 9 – SAT
- April 11 – SAT for HISD Juniors Only
- April 13 – ACT
- May 1 – Common Deadline to Accept College Offer of Admission
- May 4 – SAT
- June 1 – SAT
- June 8 – ACT
- July 13 – ACT
These dates were accurate on August 1, 2018
