2026-27 Academic Calendar
Key dates, holidays, and events for International High school @ Largo.
School at a Glance
Upcoming events & academic holidaysOCT
16
Professional Development Day – Schools Closed for Students
OCT
30
End of First Quarter (45 days)
OCT
30
Grading and Reporting Day for Teachers – Early Dismissal for Students, Half-Day for Teachers
NOV
3
Election Day – Schools and Offices Closed
NOV
11
Parent-Teacher Conferences – Schools Closed for Students
NOV
25
Holiday – Thanksgiving Break – Schools and Offices Closed
NOV
26
Holiday – Thanksgiving Break – Schools and Offices Closed
NOV
27
Holiday – Thanksgiving Break – Schools and Offices Closed
DEC
11
Teacher Professional Half-Day – Early Dismissal for Students
DEC
21
Winter Break – Schools and Offices Closed
DEC
22
Winter Break – Schools and Offices Closed
DEC
23
Winter Break – Schools and Offices Closed
DEC
24
Winter Break – Schools and Offices Closed
DEC
25
Winter Break – Schools and Offices Closed
DEC
28
Winter Break – Schools and Offices Closed
DEC
29
Winter Break – Schools and Offices Closed
DEC
30
Winter Break – Schools and Offices Closed
DEC
31
Winter Break – Schools and Offices Closed
JAN
1
Holiday - New Year's Day – Schools and Offices Closed
JAN
18
Holiday - Martin Luther King Jr. Day – Schools and Offices Closed
JAN
22
End of Second Quarter (44 days)
JAN
22
Grading and Reporting Day for Teachers – Early Dismissal for Students, Half-Day for Teachers
FEB
15
Holiday - Presidents' Day – Schools and Offices Closed
FEB
26
Teacher Professional Half-Day – Early Dismissal for Students
MAR
10
Holiday - Eid al-Fitr* (starts sunset of 3/9)
MAR
10
Professional Development – Schools Closed for Students (Eid al-Fitr) (Potential Inclement Weather Make-Up Day*)
MAR
26
Holiday - Good Friday – Schools and Offices Closed
MAR
29
Holiday - Monday after Easter – Schools and Offices Closed
MAR
30
Spring Break – Schools Closed for Students and Teachers
MAR
31
Spring Break – Schools Closed for Students and Teachers
APR
1
Spring Break – Schools Closed for Students and Teachers
APR
2
Spring Break – Schools Closed for Students and Teachers
APR
9
End of Third Quarter (47 days)
APR
9
Grading and Reporting Day for Teachers – Early Dismissal for Students, Half-Day for Teachers
APR
19
Professional Development – Schools Closed for Students (Potential Inclement Weather Make-Up Day*)
MAY
7
Last Day for High School Seniors (only)
MAY
17
Holiday - Eid al-Adha* (starts sunset of 5/16) - Schools and Offices Closed
MAY
21
Teacher Professional Half-Day – Early Dismissal for Students
MAY
31
Holiday - Memorial Day – Schools and Offices Closed
JUN
15
End of Fourth Quarter (44 days)
JUN
15
Last Day for Students – Early Dismissal for Students
JUN
16
Last Day for Teachers*
JUN
16
Potential Inclement Weather Make-Up Day*
JUN
17
Potential Inclement Weather Make-Up Day*
JUN
18
Schools and Offices Closed (In Observance of Juneteenth)
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at International High school @ Largo.
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 16, 2026
SAT — National
State Assessments
December 7, 2026 – January 22, 2027
MCAP — ELA
December 7, 2026 – January 22, 2027
MCAP — Mathematics
December 7, 2026 – January 22, 2027
MCAP — Government EOC
January 6, 2027 – March 3, 2027
WIDA ACCESS
March 29, 2027 – May 28, 2027
MCAP — Science (LS MISA)
March 29, 2027 – May 28, 2027
MCAP — Government