- School starts Thursday, Aug. 19, 2027 and ends Friday, June 2, 2028, an early release day, as planned. It can fall anywhere from Friday, June 2 to Friday, June 9: emergency days June 5 to 9 are added if needed.
- Thanksgiving break: Nov. 24 to 26. Students are out Wednesday, Nov. 24 to Sunday, Nov. 28, back Monday, Nov. 29.
- Winter break: Dec. 20 to 31. Students are out Saturday, Dec. 18 to Monday, Jan. 3, back Tuesday, Jan. 4.
- Spring break: March 27 to 31. Students are out Friday, March 24 to Sunday, April 2, back Monday, April 3.
- Four early release days for every school. Details below.
The D109 2027-28 calendar
This is the district's own calendar, as D109 publishes it. Tap it to open the full-size image.
Add the D109 calendar to your phone
Pick a file. Each one is an all-day event per day off or half day, 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.
D109 vacations and holidays, 2027-28
Every day with no school for students, from the first day to the last: 15 entries and 30 weekdays in all.
| Day off | Dates | Days of the week | School days off |
|---|---|---|---|
| Labor Day Holiday | Sept. 6 | Mon | 1 |
| Legal holiday (no school) Holiday | Oct. 11 | Mon | 1 |
| Parent-teacher conferences (no school for students) Other | Oct. 22 | Fri | 1 |
| Veterans Day Holiday | Nov. 11 | Thu | 1 |
| Thanksgiving break Break | Nov. 24 to 26 | Wed to Fri | 3 |
| Winter break Break | Dec. 20 to 31 | Mon to Fri | 10 |
| Teacher institute day (no school for students) Staff day | Jan. 3 | Mon | 1 |
| Martin Luther King Jr. Day Holiday | Jan. 17 | Mon | 1 |
| Teacher institute day (no school for students) Staff daySchool day instead if this emergency day is needed | Feb. 18 | Fri | 1 |
| Presidents' Day HolidaySchool day instead if this emergency day is needed | Feb. 21 | Mon | 1 |
| Casimir Pulaski Day HolidaySchool day instead if this emergency day is needed | March 6 | Mon | 1 |
| Parent-teacher conferences (no school for students) Other | March 24 | Fri | 1 |
| Spring break Break | March 27 to 31 | Mon to Fri | 5 |
| Good Friday (no school) Holiday | April 14 | Fri | 1 |
| Memorial Day Holiday | May 29 | Mon | 1 |
D109 early release days
Four early release days in all.
| Date | Day | What | Dismissal | Who |
|---|---|---|---|---|
| Aug. 19 | Thu | First day of school, half day | Half day, time not printed | All schools |
| Oct. 21 | Thu | Parent-teacher conferences, half day (students attend in the morning) | Half day, morning only; time not printed | All schools |
| March 23 | Thu | Parent-teacher conferences, half day (students attend in the morning) | Half day, morning only; time not printed | All schools |
| June 2 | Fri | Last day of school, half day | Half day, time not printed | All schools |
Calendar notes: what to plan around
Long weekends and breaks
Every stretch of three or more days with no school, counting weekends. A half day next to a weekend adds half a day.
- 3-day weekend: Saturday, Sept. 4 to Monday, Sept. 6. Labor Day. Back Tuesday, Sept. 7.
- 3-day weekend: Saturday, Oct. 9 to Monday, Oct. 11. Legal holiday (no school). Back Tuesday, Oct. 12.
- 3.5-day weekend: Thursday, Oct. 21 at early dismissal to Sunday, Oct. 24. Parent-teacher conferences, half day (students attend in the morning) and Parent-teacher conferences (no school for students). Back Monday, Oct. 25.
- 5-day weekend: Wednesday, Nov. 24 to Sunday, Nov. 28. Thanksgiving break. Back Monday, Nov. 29.
- 17 days off in a row: Saturday, Dec. 18 to Monday, Jan. 3. Winter break and teacher institute day (no school for students). Back Tuesday, Jan. 4.
- 3-day weekend: Saturday, Jan. 15 to Monday, Jan. 17. Martin Luther King Jr. Day. Back Tuesday, Jan. 18.
- 4-day weekend: Friday, Feb. 18 to Monday, Feb. 21. Teacher institute day (no school for students) and Presidents' Day. Back Tuesday, Feb. 22.
- 3-day weekend: Saturday, March 4 to Monday, March 6. Casimir Pulaski Day. Back Tuesday, March 7.
- 10.5 days off in a row: Thursday, March 23 at early dismissal to Sunday, April 2. Parent-teacher conferences, half day (students attend in the morning), Parent-teacher conferences (no school for students) and spring break. Back Monday, April 3.
- 3-day weekend: Friday, April 14 to Sunday, April 16. Good Friday (no school). 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
Fourteen weeks have fewer than five school days, and three weeks have none at all.
| Week of | School days | Why |
|---|---|---|
| Aug. 16 | 2 | Before the first day |
| Sept. 6 | 4 | Labor Day |
| Oct. 11 | 4 | Legal holiday (no school) |
| Oct. 18 | 4 | Parent-teacher conferences (no school for students) |
| Nov. 8 | 4 | Veterans Day |
| Nov. 22 | 2 | Thanksgiving break |
| Dec. 20 | 0 | Winter break |
| Dec. 27 | 0 | Winter break |
| Jan. 3 | 4 | Teacher institute day (no school for students) |
| Jan. 17 | 4 | Martin Luther King Jr. Day |
| Feb. 14 | 4 | Teacher institute day (no school for students) |
| Feb. 21 | 4 | Presidents' Day |
| March 6 | 4 | Casimir Pulaski Day |
| March 20 | 4 | Parent-teacher conferences (no school for students) |
| March 27 | 0 | Spring break |
| April 10 | 4 | Good Friday (no school) |
| May 29 | 4 | Memorial Day |
Teacher workdays: no school for students
Two of the days off are staff days. Teachers work; students stay home. Plan child care as you would for a holiday.
- Monday, Jan. 3: teacher institute day (no school for students)
- Friday, Feb. 18: teacher institute day (no school for students)
Makeup days
Emergency day, Friday, Feb. 18 (only if emergency days are needed), Emergency day, Monday, Feb. 21 (only if emergency days are needed), Emergency day, Monday, March 6 (only if emergency days are needed), Emergency day, Monday, June 5 (only if emergency days are needed), Emergency day, Tuesday, June 6 (only if emergency days are needed), Emergency day, Wednesday, June 7 (only if emergency days are needed), Emergency day, Thursday, June 8 (only if emergency days are needed) and Emergency day, Friday, June 9 (only if emergency days are needed).
Also worth knowing
- The calendar prints no testing dates.
- Some days off may change: teacher institute day (no school for students), Feb. 18 (School day instead if this emergency day is needed), Presidents' Day, Feb. 21 (School day instead if this emergency day is needed) and Casimir Pulaski Day, March 6 (School day instead if this emergency day is needed).
- The last day can move. Emergency days June 5 to 9 are added if needed. The planned last day is Friday, June 2; it can fall from Friday, June 2 to Friday, June 9.
- After the last day, the calendar still shows Juneteenth (June 19). Students are already out.
First and last day of school
The first day of school is Thursday, Aug. 19, 2027. The last day is Friday, June 2, 2028, with early dismissal, as planned. It can fall anywhere from Friday, June 2 to Friday, June 9: emergency days June 5 to 9 are added if needed.
Teachers start sooner. Staff days before school run Aug. 17 to 18.
What the district notes
- The calendar's monthly counts add up to 177 student days: 9 in August, 21 in September, 19 in October, 18 in November, 13 in December, 19 in January, 19 in February, 16 in March, 19 in April, 22 in May and 2 in June.
- Emergency days are marked on Feb. 18, Feb. 21 and March 6 and June 5 to 9. The calendar does not say in what order they are used.
- The Board approved the calendar on May 21, 2026, and notes it can be changed at any time by Board vote or for emergencies as determined by the superintendent.
Common questions
When does D109 start in 2027?
The first day of school for Deerfield Public Schools District 109 is Thursday, Aug. 19, 2027.
When is the last day of school for D109 in 2028?
The last day for students is Friday, June 2, 2028. It is an early release day, as planned. It can fall from Friday, June 2 to Friday, June 9: emergency days June 5 to 9 are added if needed.
When is winter break for D109?
Winter break runs Monday, Dec. 20 to Friday, Dec. 31. Counting weekends and the days next to it, students are out Saturday, Dec. 18 to Monday, Jan. 3 and go back Tuesday, Jan. 4.
When is spring break for D109?
Spring break runs Monday, March 27 to Friday, March 31. Counting weekends and the days next to it, students are out Friday, March 24 to Sunday, April 2 and go back Monday, April 3.
When is Thanksgiving break for D109?
Thanksgiving break runs Wednesday, Nov. 24 to Friday, Nov. 26. Counting weekends, students are out Wednesday, Nov. 24 to Sunday, Nov. 28 and go back Monday, Nov. 29.
Does D109 have early release days in 2027-28?
Yes. Thursday, Aug. 19 (half day, time not printed), Thursday, Oct. 21 (half day, morning only; time not printed), Thursday, March 23 (half day, morning only; time not printed) and Friday, June 2 (half day, time not printed) are for every school.
How do I put the D109 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 our count of every school day against the day counts the district prints. They match.
Every weekday on this page matches its date. If the district changes its calendar, its page is the final word.
Where each date is on the district's calendar
- First day, Aug. 19: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, August grid, "(^19" (legend "( School Opens", "^ Half Day Inservice - PM"); notes "19 School Opens", "19 Half Day Inservice - PM".
- Last day, June 2: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, June grid, "^2)" (legend ") School Closes"); notes "2 Last Day without Emergency Days", "2 Half Day Inservice - PM".
- When the last day can move, June 2 to 9: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, notes "2 Last Day without Emergency Days", "5 Emergency Days Begin", "9 Emergency Days End"; June grid #5 to #9.
- Teacher institute days before school starts, Aug. 17 to 18: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, August grid, &17 and &18 (legend "& Institute Day - All Day"); notes "17 Teacher Institute Day", "18 Teacher Institute Day".
- Labor Day, Sept. 6: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, September grid, X6 (Legal Holiday); note "6 Legal Holiday - Labor Day".
- Legal holiday (no school), Oct. 11: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, October grid, X11; note "11 Legal Holiday - Not in Attendance".
- Parent-teacher conferences (no school for students), Oct. 22: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, October grid, **22 (legend "** Parent Teacher Conferences - AM (Students Not Present)"); note "22 Parent Teacher Conferences - AM".
- Veterans Day, Nov. 11: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, November grid, X11; note "11 Legal Holiday - Veterans Day".
- Thanksgiving break, Nov. 24 to 26: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, November grid, 24 and 26 struck through (Not in Attendance), X25; notes "24 Not in Attendance", "25 Legal Holiday - Thanksgiving", "26 Not in Attendance".
- Winter break, Dec. 20 to 31: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, December grid, 20 to 23 and 27 to 30 struck through, X24 and X31; notes "20 Winter Break Begins", "24 Legal Holiday - Christmas Observed", "31 Legal Holiday - New Year's Day Observed".
- Teacher institute day (no school for students), Jan. 3: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, January grid, &3; notes "3 School Resumes for Staff", "3 Teacher Institute Day", "4 School Resumes for Students".
- Martin Luther King Jr. Day, Jan. 17: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, January grid, X17; note "17 Legal Holiday - Dr. King's Birthday".
- Teacher institute day (no school for students), Feb. 18: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, February grid,  notes "18 Teacher Institute Day", "18 Possible Emergency Day".
- Presidents' Day, Feb. 21: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, February grid, X#21; notes "21 Legal Holiday - Presidents' Day", "21 Possible Emergency Day".
- Casimir Pulaski Day, March 6: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, March grid, X#6 (Legal Holiday and Emergency Day); note "6 Legal Holiday - Casimir Pulaski Day".
- Parent-teacher conferences (no school for students), March 24: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, March grid, **24; note "24 Parent Teacher Conferences - AM".
- Spring break, March 27 to 31: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, March grid, 27 to 31 struck through; notes "27 Spring Break Begins"; April note "3 School Resumes".
- Good Friday (no school), April 14: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, April grid, X14; note "14 Not in Attendance".
- Memorial Day, May 29: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, May grid, X29; note "29 Legal Holiday - Memorial Day".
- Juneteenth, June 19: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, June grid, X19; note "19 Legal Holiday - Juneteenth".
- First day of school, half day, Aug. 19: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, August grid, "(^19"; note "19 Half Day Inservice - PM" (legend "^ Half Day Inservice - PM").
- Parent-teacher conferences, half day (students attend in the morning), Oct. 21: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, October grid, *21 (legend "* Parent Teacher Conferences - PM/Evening (Students 1/2 Day AM)"); note "21 Parent Teacher Conferences - PM/Evening".
- Parent-teacher conferences, half day (students attend in the morning), March 23: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, March grid, *23; note "23 Parent Teacher Conferences - PM/Evening".
- Last day of school, half day, June 2: Deerfield Public Schools District 109 2027-2028 School Calendar (PDF, approved by the Board of Education May 21, 2026), page 1, June grid, "^2)"; note "2 Half Day Inservice - PM".