Academic Calendar

Fall Semester 2023
  • Last Day for Full Refund/Course Payment Due – September 8, 2023 at 5:00pm ET
  • Fall Semester Classes Start – September 11, 2023
  • Registration Closes/Last Day to Withdraw with 50% Refund/Last Day for Course Change Requests – September 22, 2023 at 5:00pm ET
  • Quarter 1 Ends – November 3, 2023
  • Mid-Semester Report Published – November 10, 2023
  • Quarter 2 Ends and Final Day to Complete Semester – December 15, 2023
  • Semester I Report Published – December 22, 2023

Spring Semester 2024
  • Classes Resume – January 16, 2024
  • Quarter 3 Ends – March 8, 2024
  • Mid-Semester Report Published – March 15, 2024
  • Quarter 4 Ends and Final Day to Complete Semester – April 26, 2024
  • Semester II Report Published – May 3, 2024
​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.​

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 4:00 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.

2023
January 16, 2023 – Dr. Martin Luther King Jr. Day
February 20, 2023 – American Presidents’ Day
May 29, 2023 – American Memorial Day
June 19, 2023 – American Juneteenth
July 4, 2023 – American Independence Day
September 4, 2023 – American Labor Day
October 9, 2023 – Indigenous Peoples' Day
November 22-24, 2023 – American Thanksgiving Holiday
December 23, 2023 - January 2, 2024 – Winter Holiday

2024
January 15, 2024 – Dr. Martin Luther King Jr. Day
February 19, 2024 – American President’s Day
May 27, 2024 – American Memorial Day
June 19, 2024 – American Juneteenth
July, 4, 2024 - American Independence Day
September 2, 2024 - American Labor Day
October 14, 2024 – Indigenous People’s Day
November 27-29, 2024 – American Thanksgiving
December 23, 2024 – January 1, 2025 – Winter Holiday