For the 2026–2027 school year, the district serves 22,000 students across 15 schools in Southern California, California. The 2026–2027 academic year includes 180 instructional days. All dates listed below are sourced from the district's official publications. Verify with William S. Hart Union High School District before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for William S. Hart Union High School District. Click any page to open the full-size image.
School Calendar
Interactive Calendar
William S. Hart Union High School District's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for William S. Hart Union High School District WSHSD.
Sources and Checks
Where these dates come from
How the 2026–2027 William S. Hart Union High School District calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar William S. Hart Union High School District published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against hartdistrict.org.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with William S. Hart Union High School District before booking around a date.
Common Questions
Frequently Asked Questions
William S. Hart Union High School District Calendar 2026–2027 — important dates and answers.
The first day of school for students in the William S. Hart Union High School District for the 2026-2027 school year is August 11, 2026.
Spring Break in William S. Hart Union High School District is scheduled from April 5 to April 9, 2027.
Christmas Break begins on December 21, 2026 and continues through January 8, 2027 in the William S. Hart Union High School District.
Winter Break in William S. Hart Union High School District runs from December 21, 2026 through January 8, 2027.
Thanksgiving Break in William S. Hart Union High School District is from November 23 to November 27, 2026.
The last day of the 2026-2027 school year in William S. Hart Union High School District is June 3, 2027, which marks the end of the second semester.
The second semester for the 2026-2027 school year begins on January 11, 2027.
Fall Break in the William S. Hart Union High School District is scheduled for October 5, 2026.
Memorial Day will be observed on May 31, 2027 in the William S. Hart Union High School District.
Martin Luther King Jr. Day will be observed on January 18, 2027.
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