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Calendar & School Hours


The academic year is 180 days, broken into two semesters. Semester 1 is from early August until late December. Semester 2 is from early January to early June. Lao National holidays are observed in addition to traditional international school breaks.

Key events are highlighted on this active calendar and on the official VIS printed wall calendar distributed to families at the start of the school year.

Year at a Glance 2019-20


Abbreviations -

PLD   Professional Learning Day
CCP   Co-curricular Program
IB   International Baccalaureate
UOI   Unit of Inquiry
MRISA   Mekong River International Schools Association


Time specific events will be updated during each month in the live calendar below.

School Calendar

October 2019
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Sun, Sep 29
Mon, Sep 30
Parents & Friends Medical Care Seminar
Fitness Center
Mid-Autumn & National Day Festival
@ VIS Front Walkway
VSSA Junior Girls Basketball - VIS v. ISL
VIS frontcourt
VSSA Junior Boys Basketball - VIS v. ISL
VIS frotncourt
Thu, Oct 3
Make-Up Photo Day
Staff Room
Fun Friday Meet
VIS Swimming Pool
Sat, Oct 5
SAT 8am-1pm
The Special Arts Event
@ Secondary Courtyard

School Hours

Primary School (ey - Grade 5)

  • Monday, Tuesday, Thursday, Friday

7:50am - 3:00pm

  • Wednesday

7:50am - 1:00 pm

Secondary School (Grade 6 - 12)

  • Monday, Tuesday, Thursday, Friday

8:00am - 3:00pm

  • Wednesday

8:00am - 1:00pm

Grade 11 and 12 (Depending on Classes)

  • Monday, Tuesday, Thursday, Friday

3:05 - 3:45, extra period for the Diploma Programme (DP)