Academic Calendar

Fall Semester 2021
  • Last Day for Full Refund/Course Payment Due – September 10, 2021
  • Fall Semester Classes Start – September 13, 2021
  • Registration Closes/Last Day to Withdraw with 50% Refund – by close of business September 24, 2021
  • Quarter 1 Ends – October 29, 2021
  • Mid-Semester Report Published – November 5, 2021
  • Quarter 2 Ends and Final Day to Complete Semester Including Exam – December 14, 2021
  • Semester I Report Published – December 22, 2021

Spring Semester 2022
  • Classes Resume – January 18, 2022
  • Quarter 3 Ends – March 11, 2022
  • Mid-Semester Report Published – March 18, 2022
  • Quarter 4 Ends and Final Day to Complete Semester Including Exam – April 29, 2022
  • Semester II Report Published – May 9, 2022

Please Note: There is no time off for fall or spring breaks.  Please see below for our Late Work Policy and how to handle extenuating circumstances that might arise during a school’s breaks; AP® courses continue with review between the end of class and the day of the course’s AP® examination.​

For-Credit Summer 2022
  • Last Day for Full Refund/Course Payment Due -  June 10, 2022 at 5:00pm ET
  • Summer Classes Start – June 13, 2022
  • Registration Closes/Last Day to Withdraw with 50% Refund – June 17, 2022 at 5:00pm ET
  • Mid-Term Grading Period Ends – July 8, 2022
  • Mid-Term Report Published for Students and Parents/Guardians – July 15, 2022
  • Last Day of Session – August 5, 2022
  • Final Report Published for Students and Parents/Guardians – August 12, 2022​

Fall Semester 2022
  • Last Day for Full Refund/Course Payment Due – September 9, 2022 at 5:00pm ET
  • Fall Semester Classes Start – September 12, 2022
  • Registration Closes/Last Day to Withdraw with 50% Refund – September 23, 2022 at 5:00pm ET
  • Quarter 1 Ends – November 4, 2022
  • Mid-Semester Report Published – November 11, 2022
  • Quarter 2 Ends and Final Day to Complete Semester – December 16, 2022
  • Semester I Report Published – December 23, 2022

Spring Semester 2023
  • Classes Resume – January 17, 2023
  • Quarter 3 Ends – March 10, 2023
  • Mid-Semester Report Published – March 17, 2023
  • Quarter 4 Ends and Final Day to Complete Semester – April 28, 2023
  • Semester II Report Published – May 5, 2023

Office Schedule & Calendar


​One Schoolhouse is based in Washington D.C., and its office operates on Eastern Time.  The office is open from 9:00 a.m. to 5:00 p.m. ET each day.  Knowing that many of our students, schools, and families come from many time zones, we make every effort to answer calls after hours as well, though we ask for your patience and understanding if we cannot give you immediate help or information after hours.

The office is closed on most United States holidays, including the below dates.  If classes are running during these times, they remain active.

2022
January 17, 2022 – Dr. Martin Luther King Jr. Day
February  21, 2022 – American Presidents’ Day
May 30, 2022 – American Memorial Day
June 20, 2022 - American Juneteenth (observed)
July 4, 2022 – American Independence Day
September 5, 2022 – American Labor Day
October 10, 2022 - Indigenous Peoples' Day
November 23-25, 2022 – American Thanksgiving Holiday
December 23, 2022 - January 3, 2023 -- Winter Holiday