Duncanville High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Duncanville High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
AUG
6
First Day of School
SEP
7
No School
Labor Day
OCT
12
No School
Fall Break
NOV
23
No School
Thanksgiving Break
DEC
21
No School
Winter Break
JAN
18
No School
MLK Jr Holiday
MAR
15
No School
Spring Break
MAY
27
Last Day of School
MAY
31
No School
Memorial Day
Partner TipEarly dismissal days and parent-teacher conferences are often updated 2 weeks in advance. Check back regularly to stay ahead of the schedule!
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Duncanville High School.
National Tests
August 7, 2026
SAT — National
Registration deadline
August 11, 2026
SAT — National
Late registration deadline
August 14, 2026
ACT — National
Registration deadline
August 22, 2026
SAT — National
Test date
August 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
State Assessments
November 30, 2026 – December 11, 2026
STAAR — Fall EOC
Testing window
TX
February 15, 2027 – March 26, 2027
TELPAS
Testing window
TX
February 15, 2027 – March 26, 2027
TELPAS Alternate
Testing window
TX
March 15, 2027 – April 16, 2027
STAAR — Alternate 2
Testing window
TX
March 15, 2027 – April 16, 2027
STAAR Alternate 2
Testing window
TX
April 5, 2027 – April 16, 2027
STAAR — Reading Language Arts and English EOC
Testing window
TX