Calendar
2026 - 2027 Events
| AUGUST 2026 | |
| Monday, August 24 | School Resumes |
| SEPTEMBER 2026 | |
| September 21-23 | School Closed/Silver Week Holidays |
| Saturday, September 26 | Tokyo Sports Day Grades 1-4 |
| OCTOBER 2026 | |
| Monday, October 12 | School Closed/Nat'l Sports Day |
| October 19-30 | 2nd Term Exams Grades 1-12; Grades 1 and 2 start 10/21 |
| Thursday, October 22 | Tokyo KG PTM |
| Tuesday, October 27 | Yokohama KG PTM |
| Thursday, October 29 | Sports Day KG Tokyo and Yokohama |
| NOVEMBER 2026 | |
| Tuesday, November 3 | School Closed/Culture Day |
| Saturday, November 7 | Tokyo PTM |
| Sunday, November 8 | Yokohama PTM |
| November 14-15 | Tokyo PTM |
| November 14-15 | Tokyo Science Fair |
| Saturday, November 14 | Yokohama Science Fair Grades 6-9 |
| Monday, November 23 | School Closed/Labor Thanksgiving Day |
| November 27-29 | Model UN at IISJ |
| DECEMBER 2026 | |
| Saturday, December 12 | Yokohama Winter Concert |
| December 12-13 | Tokyo Winter Concert |
| Friday, December 18 | Students Dismissed 2 Hours Early |
| Monday, December 21 | Winter Vacation Starts |
| JANUARY 2027 | |
| Monday, January 4 | School Resumes |
| January 4-8 | Grade 11 2nd Periodic Tests |
| January 4-18 | Pre-Board Exams Grades 10, 12 |
| Monday, January 11 | School Closed/Coming of Age Day |
| January 21-February 5 | Grade 12 Board Practicals |
| Tuesday, January 26 | School Closed, Republic Day of India |
| FEBRUARY 2027 | |
| February 1-5 | Grade 12 Board Practicals, continued |
| Thursday, February 11 | School Closed/Nat'l Foundation Day |
| February 15-March 1 | Grade 11 Final Exams |
| Tuesday, February 23 | School Closed/Emperor's Birthday |
| MARCH 2027 | |
| Monday, March 8 | New Grade 12 Begins |
| Monday, March 15 | New Grade 11 Begins (tentative) |
| March 8-24 | Final Exams Grades 1-9 |
| Monday, March 22 | School Closed/Vernal Equinox |
| March 26-April 1 | Spring Break KG-Grades 9 |
| Saturday, March 27 | Tokyo Graduation KG, 10, and 12 |
| Sunday, March 28 | TK 5 and 8/YK Graduation KG, 5, and 8 |
| APRIL 2027 | |
| Thursday, April 1 | New School Year Starts for Teachers |
| Friday, April 2 | New School Year Starts for Students |
