Preschool through Grade 12

School Calendar

Download our School Year Calendars, and view upcoming events below.

School Year 2019-2020: 


School Year 2020-2021:

  • First Day of School: Wednesday, September 2nd, 2020
  • October break: October 19th through 23rd, 2020
  • End-of-Year Break: December 18th, 2020 through January 1st, 2021
  • Winter Break: February 15th through 19th, 2021
  • Spring Break: April 19th through 23rd, 2021
  • Last Day of School: Wednesday, June 16th, 2021
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Sun, Mar 29
Mon, Mar 30
Tue, Mar 31
Church Hall
Wed, Apr 1
Thu, Apr 2
Subscribe to Alerts Open Class: 2A POSTPONED
Church Hall
Subscribe to Alerts Field Trip: 11FR & 11IB CANCELLED
LabCentral Cambridge, MA
Sat, Apr 4
Sun, Apr 19
Mon, Apr 20
Tue, Apr 21
Wed, Apr 22
Thu, Apr 23
Fri, Apr 24
Sat, Apr 25
Sun, Apr 26
Tue, Apr 28
Subscribe to Alerts State of the School
Church Hall
Wed, Apr 29
Subscribe to Alerts Field Trip: 5A
Harvard Art Museum
Thu, Apr 30
Subscribe to Alerts Field Trip: 10FR
LabCentral Cambridge, MA
Subscribe to Alerts Field Trip: 5B&C
Harvard Art Museum
Sat, May 2

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We are truly teaching the world at the International School of Boston. We welcome you to join us.