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MT.DIABLO UNIFIED SCHOOL DISTRICT CA Calendar 26-27

  • 2026/27
  • California
  • 4 teacher days

The MT.DIABLO UNIFIED SCHOOL DISTRICT 2026–27 school year runs from Aug 6, 2026 to Jun 2, 2027. Breaks include Thanksgiving break Nov 26, winter break Dec 21 - Jan 1, and spring break Apr 5-12. The table below lists all teacher workdays and holidays. Download the PDF calendar, or read the FAQs.

School year starts Thu, Aug 6, 2026 First Student Day
School year ends Wed, Jun 2, 2027 Last Student Day
Next key date Thu, Aug 6, 2026 Counts down once the school year is under way

MT.DIABLO UNIFIED SCHOOL DISTRICT 2026-27 calendar

Select a thumbnail to open it full size, zoom in, or download it.

MT.DIABLO UNIFIED SCHOOL DISTRICT school year calendar

Every published date for 2026–27, colour-coded by what happens that day.

  • First day of school
  • Last day of school
  • Holiday - school closed
  • Break / vacation
  • Teacher / professional day
  • Parent-teacher conference
  • Grading period / report cards
  • Other scheduled date

August 2026

  • Aug 3-5, 2026 — All Teacher In-Service Day - Non Student Day
  • Aug 6, 2026 — First Student Day

September 2026

  • Sept 7, 2026 — Labor Day

October 2026

  • Oct 2, 2026 — End of 1st Quarter
  • Oct 5-9, 2026 — Fall Recess
  • Oct 12, 2026 — Indigenous Peoples Day
  • Oct 13, 2026 — School Resumes
  • Oct 26, 2026 — Teacher In Service - Non Student Day

November 2026

  • Nov 2-13, 2026 — Parent Conferences (TK-5th Grade)
  • Nov 11, 2026 — Veterans Day
  • Nov 23-27, 2026 — School Recess
  • Nov 26, 2026 — Thanksgiving Day
  • Nov 27, 2026 — Board Holiday

December 2026

  • Dec 18, 2026 — End of 1st Semester/End of 2nd Quarter
  • Dec 21, 2026 - Jan 1, 2027 — Winter Recess
  • Dec 25, 2026 — Christmas Holiday

January 2027

  • Dec 21, 2026 - Jan 1, 2027 — Winter Recess
  • Jan 1, 2027 — New Year's Day
  • Jan 4, 2027 — School Resumes
  • Jan 18, 2027 — Martin Luther King Day

February 2027

  • Feb 15, 2027 — Presidents Day
  • Feb 26, 2027 — End of Trimester 2

March 2027

  • Mar 12, 2027 — End of 3rd Quarter
  • Mar 15, 2027 — All Teacher In-Service Day - Non Student Day
  • Mar 31, 2027 — Farmworkers Day

April 2027

  • Apr 5-12, 2027 — Spring Recess
  • Apr 9, 2027 — Board Holiday
  • Apr 13, 2027 — School Resumes

May 2027

  • May 31, 2027 — Memorial Day

June 2027

  • Jun 2, 2027 — Last Student Day
  • Jun 2, 2027 — End of 2nd Semester/4th Quarter/3rd Trimester
  • Jun 18, 2027 — Juneteenth (Observed)

July 2027

MT.DIABLO UNIFIED SCHOOL DISTRICT teacher and staff days 2026/27

Students normally stay home on these days. Confirm with the district before making plans.

  • Jul 30-31, 2026 New Staff Orientation District source
  • Aug 3-5, 2026 All Teacher In-Service Day - Non Student Day District source
  • Oct 26, 2026 Teacher In Service - Non Student Day District source
  • Mar 15, 2027 All Teacher In-Service Day - Non Student Day District source

MT.DIABLO UNIFIED SCHOOL DISTRICT breaks and holidays

School is closed to students on these dates.

  • Jul 3, 2026 Independence Day (Observed) Holiday
  • Sept 7, 2026 Labor Day Holiday
  • Oct 5-9, 2026 Fall Recess Break
  • Oct 12, 2026 Indigenous Peoples Day Holiday
  • Nov 11, 2026 Veterans Day Holiday
  • Nov 23-27, 2026 School Recess Break
  • Nov 26, 2026 Thanksgiving Day Holiday
  • Nov 27, 2026 Board Holiday Holiday
  • Dec 21, 2026 - Jan 1, 2027 Winter Recess Break
  • Dec 25, 2026 Christmas Holiday Holiday
  • Jan 1, 2027 New Year's Day Holiday
  • Jan 18, 2027 Martin Luther King Day Holiday
  • Feb 15, 2027 Presidents Day Holiday
  • Apr 5-12, 2027 Spring Recess Break
  • Apr 9, 2027 Board Holiday Holiday
  • May 31, 2027 Memorial Day Holiday
  • Jun 18, 2027 Juneteenth (Observed) Holiday

Your checked 2026/27 MT.DIABLO UNIFIED SCHOOL DISTRICT planning calendar

How these dates are put together, and what to double-check before you book anything.

Useful now36 published dates for the 2026–27 school year, laid out month by month.
CheckedTaken from the district’s own published calendar, not retyped from memory.
Kept currentLast updated May 14, 2026.
Full term dates table

MT.DIABLO UNIFIED SCHOOL DISTRICT 2026–27 calendar dates

DateEvent
Jul 3, 2026Independence Day (Observed)
Jul 29, 2026Title I Academy
Jul 30-31, 2026New Staff Orientation
Aug 3-5, 2026All Teacher In-Service Day - Non Student Day
Aug 6, 2026First Student Day
Sept 7, 2026Labor Day
Oct 2, 2026End of 1st Quarter
Oct 5-9, 2026Fall Recess
Oct 12, 2026Indigenous Peoples Day
Oct 13, 2026School Resumes
Oct 26, 2026Teacher In Service - Non Student Day
Oct 30, 2026End of 1st Trimester
Nov 2-13, 2026Parent Conferences (TK-5th Grade)
Nov 11, 2026Veterans Day
Nov 23-27, 2026School Recess
Nov 26, 2026Thanksgiving Day
Nov 27, 2026Board Holiday
Nov 30, 2026School Resumes
Dec 18, 2026End of 1st Semester/End of 2nd Quarter
Dec 21, 2026 - Jan 1, 2027Winter Recess
Dec 25, 2026Christmas Holiday
Jan 1, 2027New Year's Day
Jan 4, 2027School Resumes
Jan 18, 2027Martin Luther King Day
Feb 15, 2027Presidents Day
Feb 26, 2027End of Trimester 2
Mar 12, 2027End of 3rd Quarter
Mar 15, 2027All Teacher In-Service Day - Non Student Day
Mar 31, 2027Farmworkers Day
Apr 5-12, 2027Spring Recess
Apr 9, 2027Board Holiday
Apr 13, 2027School Resumes
May 31, 2027Memorial Day
Jun 2, 2027Last Student Day
Jun 2, 2027End of 2nd Semester/4th Quarter/3rd Trimester
Jun 18, 2027Juneteenth (Observed)

MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 26-27 Revised FAQs

When is the first day of school for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
The first student day for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is August 6, 2026.
When is spring break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Spring Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is from April 5-12, 2027.
When is Christmas break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Christmas Holiday in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is on December 25, 2026.
When is winter break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Winter Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is from December 21, 2026 to January 1, 2027.
When is Thanksgiving break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Thanksgiving break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is from November 23-27, 2026.
When is the last day of school for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
The last student day for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is June 2, 2027.
When is Labor Day in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Labor Day is observed on September 7, 2026.
When is Memorial Day in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Memorial Day is observed on May 31, 2027.
When does school resume after Fall Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
School resumes after Fall Recess on October 13, 2026.
When does school resume after Winter Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
School resumes after Winter Recess on January 4, 2027.

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MT.DIABLO UNIFIED SCHOOL DISTRICT calendar FAQs

When is the first day of school for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
The first student day for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is August 6, 2026.
When is spring break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Spring Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is from April 5-12, 2027.
When is Christmas break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Christmas Holiday in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is on December 25, 2026.
When is winter break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Winter Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is from December 21, 2026 to January 1, 2027.
When is Thanksgiving break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Thanksgiving break in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is from November 23-27, 2026.
When is the last day of school for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
The last student day for MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027 is June 2, 2027.
When is Labor Day in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Labor Day is observed on September 7, 2026.
When is Memorial Day in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
Memorial Day is observed on May 31, 2027.
When does school resume after Fall Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
School resumes after Fall Recess on October 13, 2026.
When does school resume after Winter Recess in MT.DIABLO UNIFIED SCHOOL DISTRICT Calendar 2026-2027?
School resumes after Winter Recess on January 4, 2027.

Dates can change after publication. Read our calendar disclaimer.