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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.

Download our school "Timetable Days Calendar"

Download our one page "Year at a Glance 2019/2020"

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

September 2019
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Sun, Sep 1
Mon, Sep 2
Tue, Sep 3
Parents&Friends (AGM)
Admin Conference Room
Wed, Sep 4
Thu, Sep 5
HOS Parent Coffee
Admin Conference Room
Fri, Sep 6
Fun Friday Swim Meet
VIS Pool
Sat, Sep 7
Health & Safety Training for Pool Use
Fitness Center
Sun, Sep 8
Mon, Sep 9
Tue, Sep 10
Volleyball Friendly Matches
VIS Front court
Secondary School Building, Room: 3109 (ground floor)
Wed, Sep 11
Thu, Sep 12
Secondary Assembly- G6-G12 Community Day
Location: VIS International School (Front Court)
Fri, Sep 13
Primary Assembly
Fitness Centre room #8201
Secondary Assembly-G6-12 community Day
Location: Secondary Building First Floor (Room: 3107-09) and Third Floor (Black Box)
Sat, Sep 14
Sun, Sep 15
Mon, Sep 16
Tue, Sep 17
Wed, Sep 18
VSSA Junior Girls Basketball - VIS v. VPSI
VIS frontcourt
VSSA Junior Boys Basketball - VIS v. VPSI
VIS frontcourt
Thu, Sep 19
Parent Coffee: A Community Learning Event for PYP/MYP/DP
Location: VIS International School (Fitness Centre) Room:8201
Fri, Sep 20
Stuco Movie Night
Location: Secondary Building Third Floor (Black Box)
Sat, Sep 21

School Hours

Primary School (ey - Grade 5)

  • Monday, Tuesday, Thursday, Friday

7:50am - 3:00pm

  • Wednesday

7:50am - 1:00pm

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)