# Mt. Diablo Unified School District calendar 2026-27: no-school days, breaks, early release

Next day off: Monday, October 12 (Indigenous Peoples Day); next break: School Recess, November 23 to 27.

## Add to your calendar

- [Google Calendar feed URL](https://mavolife.com/school-calendars/ca/mt-diablo-unified-school-district/calendar.ics): copy this link into Google Calendar's From URL option.
- [Apple Calendar](webcal://mavolife.com/school-calendars/ca/mt-diablo-unified-school-district/calendar.ics)
- [Download calendar file](https://mavolife.com/school-calendars/ca/mt-diablo-unified-school-district/calendar.ics)
- [Official 2026–27 printable PDF](https://resources.finalsite.net/images/v1786571341/mdusdorg/qui3qfcjbs5kmbyr4rmi/2025-2027schoolyearcalendarxlsx-2026-2027w_ParentTeacherConferencesr81226.pdf)

## 2026–27 student dates

- July 3: Independence Day (Observed). Independence Day (Observed); district holiday.
- August 3 to 5: Teacher In-Service Days. Students do not attend on the all-teacher in-service days.
- August 6: First Student Day. First student day of the 2026–2027 school year.
- September 7: Labor Day. Labor Day; students do not attend.
- October 2: End of First Quarter. End of the first quarter.
- October 5 to 9: Fall Recess. Fall recess; students do not attend.
- October 12: Indigenous Peoples Day. Indigenous Peoples Day; students do not attend. School resumes October 13.
- October 13: School Resumes. School resumes.
- October 26: Teacher In-Service Day. Students do not attend; the calendar identifies this as a teacher in-service, non-student day.
- October 30: End of First Trimester. End of the first trimester.
- November 2 to 13: Caregiver Conferences (TK–5th Grade). Caregiver conferences for TK–5th grade; the calendar lists the conference range but does not specify individual appointment times.
- November 11: Veterans Day. Veterans Day; students do not attend.
- November 23 to 27: School Recess. School recess; students do not attend. This range includes Thanksgiving Day and the Board Holiday.
- November 30: School Resumes. School resumes after recess.
- December 18: End of First Semester and Second Quarter. End of the first semester and second quarter.
- December 21, 2026 to January 1, 2027: Winter Recess. Winter recess; students do not attend. The range includes Christmas Day and New Year's Day.
- January 4: School Resumes. School resumes after winter recess.
- January 18: Martin Luther King Day. Martin Luther King Day; students do not attend.
- February 15: Presidents Day. Presidents Day; students do not attend.
- February 26: End of Second Trimester. End of the second trimester.
- March 12: End of Third Quarter. End of the third quarter.
- March 15: Teacher In-Service Day. Students do not attend on the all-teacher in-service day.
- April 2: Farmworkers Day. Farmworkers Day; students do not attend.
- April 5 to 12: Spring Recess. Spring recess; students do not attend. The Board Holiday on April 9 falls within this recess.
- April 13: School Resumes. School resumes after spring recess.
- May 31: Memorial Day. Memorial Day; students do not attend.
- June 2: Last Student Day; End of Second Semester, Fourth Quarter, and Third Trimester. Last student day; also the end of the second semester, fourth quarter, and third trimester.
- June 18: Juneteenth (Observed). Juneteenth (Observed); district holiday.

Source: [Official 2026–27 PDF](https://resources.finalsite.net/images/v1786571341/mdusdorg/qui3qfcjbs5kmbyr4rmi/2025-2027schoolyearcalendarxlsx-2026-2027w_ParentTeacherConferencesr81226.pdf). Checked October 3, 2026.

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.

[View this school calendar on Mavo](https://mavolife.com/school-calendars/ca/mt-diablo-unified-school-district)