Whitney HighSchool Calendar
2026-27 Academic Calendar
Key dates, holidays, and events for Whitney High.
School at a Glance
Upcoming events & academic holidays2026-27 Academic Year
SEP
7
No School
Labor Day
SEP
28
Staff Development Day
NOV
11
No School
Veterans Day Observed
NOV
23
Thanksgiving Break
DEC
18
Winter Break - Part 1
DEC
25
No School
Christmas Day
DEC
31
New Year’s / Winter Break - Part 2
JAN
1
No School
New Year’s Day
JAN
18
No School
Martin Luther King Day
FEB
15
No School
Presidents' Day
FEB
16
Presidents Week
MAR
22
Spring Break
MAR
26
Spring Break
MAR
29
Staff Development Day
MAY
31
No School
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 Whitney High.
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
August 28, 2026
SAT — National
Registration deadline
September 1, 2026
ACT — National
Late registration deadline
September 1, 2026
SAT — National
Late registration deadline
September 4, 2026
SAT — National
Score release
State Assessments
March 1, 2027 – June 30, 2027
CAASPP — Statewide Window
Testing window
CA
School Milestones
October 1, 2026 – October 15, 2026
Private School Affidavit Filing Window
Other
CA