School Calendar 2024-25

Updated August 12, 2024

2024-25 MHS Calendar

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  • August 30 (Fri): Arrivals & Registration for New International Students, All-School Leaders & Proctors, 9 a.m. to 12 p.m.
  • August 30 - September 1 (Fri-Sun): New International Student Orientation; Leadership Workshops
  • September 1 (Sun): Returning Student (Day and Boarding) Arrivals, 12 p.m. to 4 p.m.
  • September 3 (Tues): New Student (Day and Boarding) Arrivals & Registration, 9 a.m. to 2 p.m.
  • September 4 (Wed): Student Orientation & All-School Activities (all students), 8:30 a.m. to 5:30 p.m.
  • September 5 (Thurs): Convocation/First Day of Classes
  • October 18-19 (Fri-Sat): Fall Family Weekend
  • October 19-22 (Sat-Tues): Fall Long Weekend*
  • October 23 (Wed): Classes resume at 8:30 a.m.
  • November 22 (Fri): Fall Break begins at 3:30 p.m. Dorms close at 12 p.m. on Saturday, Nov. 23, and reopen at 12 p.m. on Sunday, Dec. 1.
  • December 2 (Mon): Classes resume at 8:30 a.m.
  • December 17 (Tues): Winter Break begins at 3:30 p.m. Dorms close at 12 p.m. on Wednesday, Dec. 18, and reopen at 12 p.m. on Sunday, Jan. 5.
  • January 6 (Monday): Classes resume at 8:30 a.m.
  • February 15-18 (Sat-Tues): Winter Long Weekend*
  • February 19 (Wed): Classes resume at 8:30 a.m.
  • March 14 (Fri): Spring Break begins at 3:30 p.m. — Dorms close at 12 p.m. on Saturday, March 15, and reopen at 12 p.m. on Sunday, March 30.
  • March 31 (Mon): Classes resume at 8:30 a.m.
  • April 21 (Mon): Founder’s Day/Mountain Day
  • May 27 (Tues): Last day of Classes for Seniors
  • May 30 (Fri): Last day of Classes for Grades 9-11
  • June 1 (Sun): Commencement
  • June 2 (Mon): Summer Vacation Begins; Dorms close at 12 p.m.

Important Note about School Vacations — MHS dormitories will be closed during Fall Break (Nov. 23 to Dec. 1), Winter Break (Dec. 18 to Jan. 5), and Spring Break (March 15 to 30). Families must make arrangements for students to arrive and depart campus at designated times. During Fall and Winter Long Weekends in October and February MHS dormitories will remain open, and boarding students may stay on campus; pre-registration required and additional fees may apply.