Heritage High SchoolSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Heritage High School.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
NOV
2
Professional Development
NOV
11
Veterans Day
NOV
23
Thanksgiving Holidays
DEC
18
End 2nd Nine Weeks(41 Days) Half Day for Students
DEC
21
Christmas Holidays
JAN
1
Christmas Holidays
JAN
4
1/2 Professional Development 1/2 Work Day
JAN
5
Professional Development
JAN
6
Schools Reconvene
JAN
18
Professional Development
FEB
12
President's Day Holiday
MAR
12
End 3rd Nine Weeks(45 Days)
MAR
22
Spring Break
APR
30
Spring Holiday
MAY
2
Spring Holiday
MAY
27
End 4th Nine Weeks(47 Days) Half Day for Students
MAY
28
Work Day
MAY
31
Memorial Day
Calendar 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 Heritage High School.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
Testing window
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
Testing window
October 1, 2026 – October 30, 2026
PSAT 8/9 — Fall
Testing window
October 1, 2026 – October 30, 2026
PSAT/NMSQT — Fall
Testing window
October 1, 2026 – October 30, 2026
SAT — School Day - Fall
Testing window
October 16, 2026
SAT — National
Score release
State Assessments
November 30, 2026 – December 17, 2026
TCAP — End-of-Course (EOC)
Testing window
TN
April 19, 2027 – May 6, 2027
TCAP — End-of-Course (EOC)
Testing window
TN