First day: Monday, August 10, 2026. Last day: Friday, May 28, 2027.
Students do not attend on any of the teacher planning, holiday, or closure days below. This calendar is separate from the Bell Schedule, which covers daily period times.
Fall semester
| July 3, 2026 | Schools and admin offices closed (Independence Day observance) |
|---|---|
| August 3-7, 2026 | Employee planning / inservice week (teachers only, no students) |
| August 10, 2026 | First day of school |
| September 7, 2026 | Schools and admin offices closed (Labor Day) |
| October 12-13, 2026 | Employee planning / inservice days (no students, end of 1st quarter) |
| November 11, 2026 | Schools and admin offices closed (Veterans Day) |
| November 23-25, 2026 | Schools closed (Thanksgiving break) |
| November 26, 2026 | Schools and admin offices closed (Thanksgiving Day) |
| December 21-23, 2026 | Schools closed (winter break begins) |
| December 24-25, 2026 | Schools and admin offices closed (Christmas) |
| December 28-31, 2026 | Schools and admin offices closed (winter break continues) |
Spring semester
| January 1, 2027 | Schools and admin offices closed (New Year's Day) |
|---|---|
| January 4, 2027 | Employee planning / inservice day (no students, first day back for staff) |
| January 18, 2027 | Schools and admin offices closed (Martin Luther King Jr. Day) |
| February 15, 2027 | Schools and admin offices closed (Presidents Day) |
| March 11-12, 2027 | Employee planning / inservice days (no students, end of 3rd quarter) |
| March 15-19, 2027 | Schools and admin offices closed (Spring Break) |
| March 29, 2027 | Weather contingency day |
| April 26, 2027 | Weather contingency day |
| May 28, 2027 | Last day of school |
| May 31, 2027 | Schools and admin offices closed (Memorial Day) |
| June 1-2, 2027 | Weather contingency days |
| June 18, 2027 | Schools and admin offices closed (Juneteenth) |
Weather contingency days are only used if school is canceled earlier in the year for weather. If they aren't needed, they may end up as regular days or additional closures; confirm with the school if a storm affects the calendar.
What the colors mean
| First / Last day of school | The only two dates that bookend the school year. |
|---|---|
| Employee planning / inservice | Teacher workdays. No students attend. |
| Schools / admin offices closed | Full holiday closures, including the district offices. |
| Schools closed | Student and teacher breaks (Thanksgiving and winter break run longer than just the admin-office holidays inside them). |
| Weather | Contingency days built into the calendar in case of storm closures. |
Pair this with the rest of your planning.
Source: Mandarin High School official 2026-2027 calendar, posted on campus and last updated June 2, 2026. Dates are transcribed from that calendar; always confirm against the official DCPS district calendar link above, especially after any weather event.