Calendar

Date Range
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Calendar RSS Feeds Subscribe to Calendar Alerts
September 2026
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Sunday, August 30
Monday, August 31
Tuesday, September 1
Wednesday, September 2
OIS PTA Monthly Meeting 9:00 am
All Day
Thursday, September 3
Friday, September 4
OIS ES Back to School Night
All Day
Saturday, September 5
Sunday, September 6
Monday, September 7
Tuesday, September 8
Wednesday, September 9
Thursday, September 10
Subscribe to Calendar Alerts OIS MS/HS Back to School Night
All Day
Subscribe to Calendar Alerts OIS PTA Welcome Party
All Day
Friday, September 11
Saturday, September 12
Subscribe to Calendar Alerts Kansai Regional University Fair (Ritsumeikan Uji)
All Day
Subscribe to Calendar Alerts SAT Test (OIS/SIS)
All Day
Sunday, September 13
Monday, September 14
Subscribe to Calendar Alerts OIS/SIS Club & Activity Fair
All Day
Tuesday, September 15
Wednesday, September 16
Thursday, September 17
Subscribe to Calendar Alerts OIS MYP Workshop for Parents
All Day
Subscribe to Calendar Alerts SIS G12 Course Registration for Winter
All Day
Friday, September 18
Subscribe to Calendar Alerts SIS G12 Course Registration for Winter
All Day
Saturday, September 19
Sunday, September 20
Monday, September 21
Subscribe to Calendar Alerts Respect for the Aged Day-No School
All Day
Tuesday, September 22
Subscribe to Calendar Alerts National Holiday-No School
All Day
Wednesday, September 23
Subscribe to Calendar Alerts Autumnal Equinox-No School
All Day
Thursday, September 24
Subscribe to Calendar Alerts OIS College Workshop for G12 Students & Parents 4:30 pm
All Day
Subscribe to Calendar Alerts SIS G11 Course Registration for Winter
All Day
Friday, September 25
Subscribe to Calendar Alerts SIS G11 Course Registration for Winter
All Day
Saturday, September 26
Subscribe to Calendar Alerts SIS PA Monthly Meeting 10:30 am
All Day
Sunday, September 27
Monday, September 28
Subscribe to Calendar Alerts KG School Foundation Day
All Day
Subscribe to Calendar Alerts SIS G10 Course Registration for Winter
All Day
Tuesday, September 29
Subscribe to Calendar Alerts SIS G10 Course Registration for Winter
All Day
Wednesday, September 30
Subscribe to Calendar Alerts SIS G12 Course Registration Changes
All Day
Thursday, October 1
Subscribe to Calendar Alerts SIS G12 Course Registration Changes
All Day
Friday, October 2
Subscribe to Calendar Alerts AJAA HS JV Boys Volleyball (SMIS) & Girls Volleyball (KIUA)
All Day
Subscribe to Calendar Alerts AJAA MS Baseball (CA) & Girls Volleyball (SOIS)
All Day
Saturday, October 3
Subscribe to Calendar Alerts AJAA HS JV Boys Volleyball (SMIS) & Girls Volleyball (KIUA)
All Day
Subscribe to Calendar Alerts AJAA MS Baseball (CA) & Girls Volleyball (SOIS)
All Day
Subscribe to Calendar Alerts AJAA MS/HS Cross Country (CA)
All Day
Subscribe to Calendar Alerts SAT Test (OIS/SIS)
All Day
Subscribe to Calendar Alerts SIS Open Day for new applicants (online)
All Day

School Calendar (PDF)

A PDF copy of our printed school calendar for the current academic year (2025-2026) can be downloaded here.

School Calendar (PDF)

A PDF copy of our printed school calendar for the next academic year (2026-2027) can be downloaded here.

Special Events

More information about annual school events, such as the All School Production, the School Festival, the International Fair, and Sports Day, can be found below