Mt. Diablo Unified School District school calendar
The dates from Mt. Diablo Unified School District’s official academic calendars, ready to add instead of retype. Add it once. We update it when Mt. Diablo Unified School District publishes a new school calendar.
Official district PDF
2026–27 calendar
2026–27 at a glance
The dates families usually look for first.
- October days off
- Oct 5–9
- Thanksgiving
- Nov 26
What happens in Mavo
One read-only school calendar that rolls forward each year.
Mavo checks the link, tells you how many events it found, then asks for a calendar name and color. When Mt. Diablo Unified School District publishes another school year, it appears in the same linked calendar.
The source controls the schedule, so synced dates stay read-only. You can still add the family details Mavo knows about—who’s handling it, attendance, place, notes, and a clearer title.
Linked calendars are included with Mavo Everyday and higher.
Add external calendar
Mt. Diablo Unified School District school calendar
Independence Day Observed
Mt. Diablo Unified School District 2026–27 · Read-only
Title I Academy
Mt. Diablo Unified School District 2026–27 · Read-only
New Staff Orientation
Mt. Diablo Unified School District 2026–27 · Read-only
No School: Teacher In-Service
Mt. Diablo Unified School District 2026–27 · Read-only
Free calendar updates
Add the Mt. Diablo Unified School District calendar
Includes 2026–27. We add each new school year after Mt. Diablo Unified School District publishes it.
Full district calendar
Current and upcoming Mt. Diablo Unified School District dates
Staff-only summer work days are left out. Student holidays caused by staff development are included because they change the family schedule.
Current calendar
2026–27 student dates
- No school
Independence Day Observed
Independence Day (Observed)
- School date
Title I Academy
Title I Academy
- School date
New Staff Orientation
New Staff Orientation
- No school
No School: Teacher In-Service
All Teacher In-Service Day: Non Student Day
- School date
First Student Day
First Student Day
- No school
Labor Day
Labor Day
- School date
End of 1st Quarter
End of 1st Quarter
- No school
Fall Recess
Fall Recess
- No school
Indigenous Peoples Day
Indigenous Peoples Day
- School date
School Resumes
School Resumes
- No school
No School: Teacher In-Service
Teacher In Service- Non Student Day
- School date
End of 1st Trimester
End of 1st Trimester
- School date
Caregiver Conferences (TK-5th Grade)
Caregiver Conferences (TK-5th Grade)
- No school
Veterans Day
Veterans Day
- No school
School Recess
School Recess
- No school
Thanksgiving Day
Thanksgiving Day
- No school
Board Holiday
Board Holiday
- School date
School Resumes
School Resumes
- School date
End of 1st Semester and 2nd Quarter
End of 1st Semester/End of 2nd Quarter
- No school
Winter Recess
Winter Recess
- No school
Christmas Holiday
Christmas Holiday
- No school
New Year's Day
New Year's Day
- School date
School Resumes
School Resumes
- No school
Martin Luther King Jr. Day
Martin Luther King Day
- No school
Presidents Day
Presidents Day
- School date
End of 2nd Trimester
End of Trimester 2
- School date
End of 3rd Quarter
End of 3rd Quarter
- No school
No School: Teacher In-Service
All Teacher In-Service Day- Non Student Day
- No school
Farmworkers Day
Farmworkers Day
- No school
Spring Recess
Spring Recess
- No school
Board Holiday
Board Holiday
- School date
School Resumes
School Resumes
- No school
Memorial Day
Memorial Day
- School date
Last Student Day and Year-End Grading Boundaries
Last Student Day; End of 2nd Semester/4th Quarter/3rd Trimester
- No school
Juneteenth Observed
Juneteenth (Observed)
Recognizable source. Easier calendar.
This page is an independent convenience copy. Mt. Diablo Unified School District’s PDFs remain the source of truth, and dates can change after publication.
Free calendar updates
Add the Mt. Diablo Unified School District calendar
Includes 2026–27. We add each new school year after Mt. Diablo Unified School District publishes it.