- School starts Wednesday, Aug. 11, 2027 and ends Thursday, June 1, 2028.
- Thanksgiving break: Nov. 22 to 26. Students are out Saturday, Nov. 20 to Sunday, Nov. 28, back Monday, Nov. 29.
- Winter break: Dec. 20 to 31. Students are out Saturday, Dec. 18 to Sunday, Jan. 2, back Monday, Jan. 3.
- Spring break: April 10 to 14. Students are out Saturday, April 8 to Sunday, April 16, back Monday, April 17.
- The district calendar prints no early release or minimum days.
The SMUSD 2027-28 calendar
This is the district's own calendar, as SMUSD publishes it. Tap it to open the full-size image.
Add the SMUSD calendar to your phone
Pick a file. Each one is an all-day event per day off, and a break is one event across all its days.
On an iPhone
Tap a file above, then tap Add All. The dates go into the calendar you choose.
In Google Calendar
On a computer, open Google Calendar, then Settings, then Import & export. Choose the file and the calendar to add it to. The dates show up on your Android phone too.
In Outlook
Open the downloaded file, or in Outlook on the web go to Add calendar, then Upload from file.
These files are a copy of the calendar today. If the district changes a date, download the file again.
SMUSD vacations and holidays, 2027-28
Every day with no school for students, from the first day to the last: 11 entries and 32 weekdays in all.
| Day off | Dates | Days of the week | School days off |
|---|---|---|---|
| Labor Day Holiday | Sept. 6 | Mon | 1 |
| Professional development day (no school for students) Staff day | Oct. 20 | Wed | 1 |
| Veterans Day Holiday | Nov. 11 | Thu | 1 |
| Thanksgiving break Break | Nov. 22 to 26 | Mon to Fri | 5 |
| Winter break Break | Dec. 20 to 31 | Mon to Fri | 10 |
| Martin Luther King Jr. Day Holiday | Jan. 17 | Mon | 1 |
| Professional development day (no school for students) Staff day | Jan. 26 | Wed | 1 |
| Presidents' Week break Break | Feb. 21 to 25 | Mon to Fri | 5 |
| Professional development day (no school for students) Staff day | March 15 | Wed | 1 |
| Spring break Break | April 10 to 14 | Mon to Fri | 5 |
| Memorial Day Holiday | May 29 | Mon | 1 |
SMUSD early release days
The district calendar prints no early release or minimum days.
Schools can still send their own early dismissal notices, so watch for those.
Calendar notes: what to plan around
Long weekends and breaks
Every stretch of three or more days with no school, counting weekends.
- 3-day weekend: Saturday, Sept. 4 to Monday, Sept. 6. Labor Day. Back Tuesday, Sept. 7.
- 9 days off in a row: Saturday, Nov. 20 to Sunday, Nov. 28. Thanksgiving break. Back Monday, Nov. 29.
- 16 days off in a row: Saturday, Dec. 18 to Sunday, Jan. 2. Winter break. Back Monday, Jan. 3.
- 3-day weekend: Saturday, Jan. 15 to Monday, Jan. 17. Martin Luther King Jr. Day. Back Tuesday, Jan. 18.
- 9 days off in a row: Saturday, Feb. 19 to Sunday, Feb. 27. Presidents' Week break. Back Monday, Feb. 28.
- 9 days off in a row: Saturday, April 8 to Sunday, April 16. Spring break. Back Monday, April 17.
- 3-day weekend: Saturday, May 27 to Monday, May 29. Memorial Day. Back Tuesday, May 30.
Weeks with fewer than five school days
Eight weeks have fewer than five school days, and five weeks have none at all.
| Week of | School days | Why |
|---|---|---|
| Aug. 9 | 3 | Before the first day |
| Sept. 6 | 4 | Labor Day |
| Oct. 18 | 4 | Professional development day (no school for students) |
| Nov. 8 | 4 | Veterans Day |
| Nov. 22 | 0 | Thanksgiving break |
| Dec. 20 | 0 | Winter break |
| Dec. 27 | 0 | Winter break |
| Jan. 17 | 4 | Martin Luther King Jr. Day |
| Jan. 24 | 4 | Professional development day (no school for students) |
| Feb. 21 | 0 | Presidents' Week break |
| March 13 | 4 | Professional development day (no school for students) |
| April 10 | 0 | Spring break |
| May 29 | 3 | Memorial Day and after the last day |
Teacher workdays: no school for students
Three of the days off are staff days. Teachers work; students stay home. Plan child care as you would for a holiday.
- Wednesday, Oct. 20: professional development day (no school for students)
- Wednesday, Jan. 26: professional development day (no school for students)
- Wednesday, March 15: professional development day (no school for students)
Makeup days
The calendar names no makeup days. If school closes for weather, the district announces how the day is made up.
Also worth knowing
- School is open on a federal holiday: Columbus Day (Monday, Oct. 11). Banks, post offices and many offices close; school does not.
- The district calendar prints no parent-teacher conference dates.
- The calendar prints no testing dates.
First and last day of school
The first day of school is Wednesday, Aug. 11, 2027. The last day is Thursday, June 1, 2028.
Teachers start sooner. Staff days before school run Aug. 9 to 10.
The district prints 180 instructional days across the quarters. Our count of the calendar matches.
Grading periods
Quarters
| Period | Dates | School days |
|---|---|---|
| 1st quarter | Aug. 11 to Oct. 8 | 42 |
| 2nd quarter | Oct. 11 to Dec. 17 | 43 |
| 3rd quarter | Jan. 3 to March 17 | 47 |
| 4th quarter | March 20 to June 1 | 48 |
Trimesters
| Period | Dates | School days |
|---|---|---|
| 1st trimester | Aug. 11 to Nov. 5 | 61 |
| 2nd trimester | Nov. 8 to March 3 | 62 |
| 3rd trimester | March 6 to June 1 | 57 |
What the district notes
- The calendar counts 180 student days (85 before winter break and 95 after), plus one teacher prep day and four full professional development days, 185 teacher work days in all.
- The San Marino High School calendar lists graduation and grad night on Friday, June 2, the day after the last day of school.
Common questions
When does SMUSD start in 2027?
The first day of school for San Marino Unified School District is Wednesday, Aug. 11, 2027.
When is the last day of school for SMUSD in 2028?
The last day for students is Thursday, June 1, 2028.
When is winter break for SMUSD?
Winter break runs Monday, Dec. 20 to Friday, Dec. 31. Counting weekends, students are out Saturday, Dec. 18 to Sunday, Jan. 2 and go back Monday, Jan. 3.
When is spring break for SMUSD?
Spring break runs Monday, April 10 to Friday, April 14. Counting weekends, students are out Saturday, April 8 to Sunday, April 16 and go back Monday, April 17.
When is Thanksgiving break for SMUSD?
Thanksgiving break runs Monday, Nov. 22 to Friday, Nov. 26. Counting weekends, students are out Saturday, Nov. 20 to Sunday, Nov. 28 and go back Monday, Nov. 29.
Does SMUSD have early release days in 2027-28?
The district calendar prints no early release or minimum days.
How do I put the SMUSD calendar on my phone?
Download one of the .ics files on this page. On an iPhone, open it and tap Add All. On Android or a computer, import it into Google Calendar or Outlook.
How we checked these dates
We read every date off the district's own calendar twice: once from the PDF's text and once from the image, cell by cell against its legend. Then we checked the first and last day and every day off except Nov. 11 and Jan. 26 against the district's Academic Calendars page and the San Marino High School calendar feed on the district website. The other dates rest on the district's calendar alone.
Every weekday on this page matches its date. The district's printed day counts match our own count of its calendar. If the district changes its calendar, its page is the final word.
Where each date is on the district's calendar
- First day, Aug. 11: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, August grid, 11 in blue; note "11 First Day of School". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "First Day of School" Aug. 11.
- Last day, June 1: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, June grid, 1 in blue; note "1 Last Day of School / End T3 - 57 / End Q4 48". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Last Day of School" June 1.
- Staff professional development day, Aug. 9: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, August grid, 9 in green; note "9 Professional Development"; summary "4 Full PD Days". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Professional Development" Aug. 9.
- Teacher prep day, Aug. 10: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, August grid, 10 in green; note "10 Teacher Prep Day"; summary "1 Teacher Prep Day". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Teacher Prep Day" Aug. 10.
- Labor Day, Sept. 6: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, September grid, 6 in yellow; note "6 Labor Day". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Labor Day" Sept. 6.
- Professional development day (no school for students), Oct. 20: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, October grid, 20 in green; note "20 Professional Development". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Professional Development" Oct. 20.
- Veterans Day, Nov. 11: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, November grid, 11 in yellow; note "11 Veterans Day".
- Thanksgiving break, Nov. 22 to 26: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, November grid, 22 to 26 in yellow; note "22-26 Thanksgiving". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Thanksgiving Break" Nov. 22 to 26.
- Winter break, Dec. 20 to 31: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, December grid, 20 to 24 and 27 to 31 in yellow; note "20-31 Winter Break"; January grid, 3 a school day. Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Winter Break" Dec. 20 to 31.
- Martin Luther King Jr. Day, Jan. 17: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, January grid, 17 in yellow; note "17 Martin Luther King Jr. Day". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Martin Luther King Jr. Day" Jan. 17.
- Professional development day (no school for students), Jan. 26: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, January grid, 26 in green; note "26 Professional Development".
- Presidents' Week break, Feb. 21 to 25: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, February grid, 21 to 25 in yellow; note "21-25 Presidents' Week". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Presidents Week" Feb. 21 to 25.
- Professional development day (no school for students), March 15: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, March grid, 15 in green; note "15 Professional Development". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Professional Development" March 15.
- Spring break, April 10 to 14: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, April grid, 10 to 14 in yellow; note "10-14 Spring Break". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Spring Break" April 10 to 14.
- Memorial Day, May 29: San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, May grid, 29 in yellow; note "29 Memorial Day". Also: SMUSD Website Master Calendar, San Marino High School calendar (iCal feed), "Memorial Day" May 29.
- 1st quarter (quarters): San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, October grid, 8 in red; note "8 End Q1 - 42".
- 2nd quarter (quarters): San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, December grid, 17 in red; note "17 End Q2 - 43".
- 3rd quarter (quarters): San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, March grid, 17 in red; note "17 End Q3 - 47".
- 4th quarter (quarters): San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, June note "1 Last Day of School / End T3 - 57 / End Q4 48".
- 1st trimester (trimesters): San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, November grid, 5 in purple; note "5 End T1 - 61".
- 2nd trimester (trimesters): San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, March grid, 3 in purple; note "3 End T2 - 62".
- 3rd trimester (trimesters): San Marino Unified School District 2027-2028 School Event Calendar (PDF), page 1, June note "1 Last Day of School / End T3 - 57 / End Q4 48".