2025-26 Academic Calendar
Key dates, holidays, and events for D H Conley High.
School at a Glance
Upcoming events & academic holidaysAUG
21
Optional Teacher Work Day
OCT
2
End 1st 6 Weeks 9-12
OCT
12
Required Teacher Work Day / Parent Conference Day
OCT
23
End 1st 9 Weeks K-8
OCT
30
Early Release Day
NOV
17
End 2nd 6 Weeks 9-12
DEC
18
Early Release Day
JAN
15
End 1st Semester K-12
JAN
19
Optional Teacher Work Day
JAN
20
Required Teacher Work Day
FEB
15
Required Teacher Work Day / Parent Conference Day
MAR
4
End 1st 6 Weeks 9-12
MAR
5
Early Release Day
APR
2
End 1st 9 Weeks K-8
APR
23
End 2nd 6 Weeks 9-12
APR
28
Early Release Day
JUN
8
End 2nd Semester K-12
JUN
9
Optional Teacher Work Day
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at D H Conley High.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
August 22, 2026
SAT — National
August 28, 2026
SAT — National
September 1, 2026
ACT — National
September 1, 2026
SAT — National
State Assessments
October 12, 2026 – November 20, 2026
PreACT
January 11, 2027 – March 12, 2027
WIDA ACCESS
January 11, 2027 – March 12, 2027
WIDA Alternate ACCESS
February 23, 2027 – March 5, 2027
ACT — Spring - Window 1
March 9, 2027 – March 19, 2027
ACT — Spring - Window 2
April 6, 2027 – April 16, 2027
ACT — Spring - Window 3