2026-27 Academic Calendar
Key dates, holidays, and events for Plymouth High.
School at a Glance
Upcoming events & academic holidaysOCT
23
Professional Development: No School
OCT
30
End of 1st Quarter
NOV
24
End of 1st Trimester
NOV
25
Conference Comp: No School
NOV
26
Thanksgiving: No School
DEC
24
Winter Break Begins
JAN
1
New Years Day: No School
JAN
4
School Resumes
JAN
15
End of 2nd Quarter/Semester 1
JAN
18
Professional Development: No School
FEB
19
Professional Development: No School
MAR
5
End of 2nd Trimester
MAR
22
Spring Break
APR
2
End of 3rd Quarter
APR
23
Professional Development: No School
MAY
28
Conference Comp: No School
MAY
31
Memorial Day: No School
JUN
3
End of 3rd Trimester
JUN
3
End of 4th Quarter/Semester 2
JUN
3
Student Last Day
JUN
4
Professional Development
JUN
6
Graduation
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Plymouth High.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
October 1, 2026 – October 30, 2026
PSAT 8/9 — Fall
October 1, 2026 – October 30, 2026
PSAT/NMSQT — Fall
October 1, 2026 – October 30, 2026
SAT — School Day - Fall
October 23, 2026
SAT — National
State Assessments
March 8, 2027 – April 16, 2027
PreACT Secure
March 9, 2027 – March 19, 2027
ACT with Writing — Test Window 1
March 23, 2027 – April 2, 2027
ACT with Writing — Test Window 2
April 6, 2027 – April 16, 2027
ACT with Writing — Test Window 3