Williamson County Schools school calendar
The dates from Williamson County Schools’s official academic calendars, ready to add instead of retype. Add it once. We update it when Williamson County Schools publishes a new school calendar.
2026–27 at a glance
The dates families usually look for first.
- October days off
- Oct 12–16
- Thanksgiving
- Nov 23–27
- Spring break
- Mar 15–19
- Last day
- May 27
What happens in Mavo
One read-only school calendar that rolls forward each year.
Mavo checks the link, tells you how many events it found, then asks for a calendar name and color. When Williamson County Schools publishes another school year, it appears in the same linked calendar.
The source controls the schedule, so synced dates stay read-only. You can still add the family details Mavo knows about—who’s handling it, attendance, place, notes, and a clearer title.
Linked calendars are included with Mavo Everyday and higher.
Add external calendar
Williamson County Schools school calendar
Start of School
Williamson County Schools 2026–27 · Read-only
First Full Day of School
Williamson County Schools 2026–27 · Read-only
First Full Day for Pre-K–Kindergarten
Williamson County Schools 2026–27 · Read-only
Grades 6–12 Late Start
Williamson County Schools 2026–27 · Read-only
Free calendar updates
Add the Williamson County Schools calendar
Includes 2026–27 and 2027–28. We add each new school year after Williamson County Schools publishes it.
Full district calendar
Current and upcoming Williamson County Schools dates
Staff-only summer work days are left out. Student holidays caused by staff development are included because they change the family schedule.
Current calendar
2026–27 student dates
- School date
Start of School
Students in grades 1–12 attend a half day; start of school.
- School date
First Full Day of School
First full day for students in grades 1–12.
- School date
First Full Day for Pre-K–Kindergarten
First full day for Pre-Kindergarten, Early Childhood, and Kindergarten students.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- No school
Labor Day
Students do not attend; Labor Day and the system is closed.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
End of First Quarter
End of the first quarter grading period; 44 grading days.
- No school
Fall Break
Students do not attend during fall break.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- No school
Election Day
Students do not attend for Election Day.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
Veterans’ Day / K–5 Early Release
Students are in school; K–5 students have an early release.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- No school
Thanksgiving Break
Students do not attend; Thanksgiving holiday and the system is closed.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start / K–5 Early Release
Late start for students in grades 6–12; K–5 students have an early release.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
End of First Semester
Students attend a half day; end of the first semester and 39 grading days.
- No school
Winter Break
Students do not attend during winter break.
- School date
Second Semester Begins / Grades 6–12 Late Start
Second semester begins; students attend a full day. Students in grades 6–12 also have a listed late start.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- No school
Martin Luther King, Jr. Day
Students do not attend; the system is closed for Martin Luther King, Jr. Day.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- No school
Mid-Winter Break
Students do not attend during Mid-Winter Break and Presidents’ Day observance.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- Early release
K–5 Early Release
Early release for K–5 students.
- School date
End of Third Quarter
End of the third quarter grading period; 46 grading days.
- No school
Spring Break
Students do not attend during spring break; the system is closed.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- No school
Spring Holiday
Students do not attend; the system is closed for the spring holiday.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Grades 6–12 Late Start
Late start for students in grades 6–12.
- School date
Last Day for Students
Last day for students; students attend a half day. End of the second semester and 48 grading days.
- Early release
Student Early Release
Early release for students.
Upcoming calendar
2027–28 student dates
- Early release
First Day of School
Students attend a half day; first day for grades 1–12.
- No school
Labor Day
No school for students; system closed for Labor Day.
- No school
Fall Break
No students attend during fall break.
- No school
Site-Based Professional Development Day
No students attend; site-based professional development day.
- No school
Thanksgiving Holiday
No school for students; Thanksgiving holiday and system closed.
- Early release
End of First Semester
Students attend a half day; end of the first semester.
- No school
Winter Break
No students attend during winter break; system closed December 21–31.
- School date
Second Semester Begins
Second semester begins; students attend a full day.
- No school
Martin Luther King, Jr. Day
No school for students; system closed for Martin Luther King, Jr. Day.
- No school
Mid-Winter Break
No school for students during mid-winter break.
- No school
Presidential Primary
No school for students for the Presidential Primary.
- No school
Spring Break
No school for students during spring break; system closed.
- No school
Spring Holiday
No school for students; spring holiday and system closed.
- Early release
Last Day of School
Last day for students and end of the second semester; students attend a half day.
- School date
Graduation Window
Graduation window runs from May 25 through May 28.
Recognizable source. Easier calendar.
This page is an independent convenience copy. Williamson County Schools’s PDFs remain the source of truth, and dates can change after publication.
Free calendar updates
Add the Williamson County Schools calendar
Includes 2026–27 and 2027–28. We add each new school year after Williamson County Schools publishes it.