2026-27 Academic Calendar
Key dates, holidays, and events for York Suburban SHS.
School at a Glance
Upcoming events & academic holidaysSEP
7
No School
SEP
28
No School – Professional Development/Act 80 Day
OCT
8
Early Dismissal - Professional Development (p.m.)
OCT
9
No School – Family Conferences
OCT
12
No School – Professional Development/Summer Trade Day
OCT
30
Early Dismissal - Teacher Directed Day (p.m.)
NOV
3
No School – Professional Development/Act 80 Day
NOV
25
No School – Professional Development/Summer Trade Day
NOV
26
No School
DEC
22
Early Dismissal - Professional Development (p.m.)
DEC
23
No School
JAN
15
Early Dismissal - Teacher Directed Day (p.m.)
JAN
18
No School
FEB
12
No School – Professional Development/Act 80 Day
FEB
15
No School
MAR
15
No School for Grades K-8 Only – Family Conferences
MAR
25
Early Dismissal - Teacher Directed Day (p.m.)
MAR
26
No School
APR
16
No School – Professional Development/Act 80 Day
APR
19
No School
MAY
20
Commencement for Class of 2027
MAY
25
Early Dismissal/Last Student Day - Professional Development (p.m.)
MAY
25
Last Day of School - Kindergarten thru Grade 11
MAY
26
Last Teacher Day - Teacher Directed Day*
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at York Suburban SHS.
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
December 7, 2026 – December 18, 2026
Keystone Exams — Algebra I
December 7, 2026 – December 18, 2026
Keystone Exams — Literature
December 7, 2026 – December 18, 2026
Keystone Exams — Biology
January 4, 2027 – January 15, 2027
Keystone Exams — Algebra I
January 4, 2027 – January 15, 2027
Keystone Exams — Literature
January 4, 2027 – January 15, 2027
Keystone Exams — Biology