International School of Ulaanbaatar
Source: https://isumongolia.edu.mn/c/school-calendar
Archived: 2026-04-23 17:14
International School of Ulaanbaatar
Home
School Calendar 2025-2026
School Calendar 2025-2026
- Holiday
- Break
- Event
- Start/End Semester
Download School Calendar 2025-2026
VIEW 2026-2027 CALENDAR
July 2025
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August 2025
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18
New Family Orientation
19
Classes Start
27
Not Back to School Evening
September 2025
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1-6
WWW
8
Listening Conferences (PM)
9
Listening Conferences (AM)
13
SAT Exams
14
PTG ISU Community Fun Fair
15
CCA1 Begins
25-26
PD Days
29-30
Fall MAP Testing
29
DP1/DP2 Parents Evening
October 2025
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6
1-2
Fall MAP Testing (Make Ups)
4
SAT Exams
9
TEDx Youth Event @ISU
13-18
Autumn Break
22
PSAT (TBD)
25-26
Global University Fair
27
Early Closure Day for PD
29
End of First Quarter (45 days)
November 2025
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3-7
CGC Week
4
International Food Night
7
Progress Reports
7-8
EAISAC HS VB @ NIS
8
SAT Exams
13
CCA1 Ends
13
3 Way Conferences (PM)
14-16
EAISAC MS FT @FIS
14
3 Way Conferences (Day)
19-20
Winter Concert Series
20
Annual General Meeting
21
Chinggis Khan's Birthday (tentative)
22-23
ACAMIS Robotics APAC Tournament
24-25
Winter Concert Series
26
Republic Day
27-28
Winter Concert Series
December 2025
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1
CCA2 Begins
6
SAT Exams
11-12
Secondary Production
19
Students dismissed at noon
Dec 22-Jan 9
Winter Break
29
Independence Day
Dec 22-Jan 9
Winter Break
10
Official VEX Event - Qualifier for ACAMIS Nationals (Tentative)
12
Welcome back
23
S1 Reports Issued
23
End of First Semester (90 days)
29
G5 PYP Exhibition Retreat Parent Info Session
Jan 30-Feb 1
EAISAC Festival of Arts @ISB
January 2026
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Jan 30-Feb 1
EAISAC Festival of Arts @ISB
2
S2 New Family Orientation
4-9
EAISAC HS BB @FIS
12
CCA2 Ends
12
3Way Conferences (PM)
13
3 Way Conferences (Day)
17-20
Tsagaan Sar (Lunar New Year)Tentative (floating days in lieu)
21-22
Official VEX Event - Northern Region (Tentative)
25-26
DP2 Mock Exams
27-28
EAISAC MS VB @ISU
February 2026
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2-6
DP2 Mock Exams
7-8
ACAMIS Finals (Tentative)
8
Women's Day
9
CCA3 Begins
14
SAT Exams
17
MYP PP
17
DP Visual Arts Exhibition
17
G10 Parent DP Info Evening
17
TOK Exhibitions
24
HS Careers Day
25-27
G5 PYP Exhibition Retreat
30-31
Spring MAP Testing
March 2026
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End of Third Quarter (45 days)
1
Spring MAP Testing (Make Ups)
6-10
Spring Break
15-19
ACAMIS Badminton Division 3 @ISU
17
G12 Goodbye Assembly
22
Earth Day
24-25
EAISAC HS FB @ISB
24
Early Closure Day for PD
27
DP2 Exams Begin
30
G3 & 4 Camp Parent Info Session
30
Piano Recital
April 2026
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SAT Exams
7-8
PS Spring Concert
7
CCA3 Ends
8-10
EAISAC MS BB @NIS
13-15
G3 & G4 Camp
16
Run4Water
20
DP2 Exams End
21
Celebration of Learning & Creativity
22
Athletic Celebration
23
HS Prom
27
Graduation
29
Buddha's Birthday (floating day in lieu) Tentative
May 2026
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Children's Day
2-5
DP1 Exams
5-6
EAISAC MS Jamboree
6
SAT Exams
11
Field Day
12
S2 Report Card Issued
12
End of Second Semester (90 days)-Noon Dismissal
June 2026
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CONNECT
Address
Four Seasons Garden, Khan-Uul District, 18 Khoroo, PO Box 36/10, Ulaanbaatar, Mongolia-17032
Phone
+976 7016 0010
Fax
+976 7016 0012
Working Days/Hours
School office work hours are from Monday to Friday 07:30AM-04:30PM. School is closed during public holidays.
Email
admissions@isumongolia.edu.mn
Explore More
ABOUT ISU
ADMISSIONS
ACADEMICS
COMMUNITY
WORKING at ISU
SCHOOL CALENDAR
NEWS
SITEMAP
ISU is an independent, non-profit, co-educational day school offering the International Baccalaureate curriculum from Pre-School to Grade 12. Our campus is located in the city of Ulaanbaatar, the capital of our host country, Mongolia.
CONTACT US
DIRECTIONS
Home
School Calendar 2025-2026
School Calendar 2025-2026
- Holiday
- Break
- Event
- Start/End Semester
Download School Calendar 2025-2026
VIEW 2026-2027 CALENDAR
July 2025
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August 2025
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18
New Family Orientation
19
Classes Start
27
Not Back to School Evening
September 2025
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4
1-6
WWW
8
Listening Conferences (PM)
9
Listening Conferences (AM)
13
SAT Exams
14
PTG ISU Community Fun Fair
15
CCA1 Begins
25-26
PD Days
29-30
Fall MAP Testing
29
DP1/DP2 Parents Evening
October 2025
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6
1-2
Fall MAP Testing (Make Ups)
4
SAT Exams
9
TEDx Youth Event @ISU
13-18
Autumn Break
22
PSAT (TBD)
25-26
Global University Fair
27
Early Closure Day for PD
29
End of First Quarter (45 days)
November 2025
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3-7
CGC Week
4
International Food Night
7
Progress Reports
7-8
EAISAC HS VB @ NIS
8
SAT Exams
13
CCA1 Ends
13
3 Way Conferences (PM)
14-16
EAISAC MS FT @FIS
14
3 Way Conferences (Day)
19-20
Winter Concert Series
20
Annual General Meeting
21
Chinggis Khan's Birthday (tentative)
22-23
ACAMIS Robotics APAC Tournament
24-25
Winter Concert Series
26
Republic Day
27-28
Winter Concert Series
December 2025
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CCA2 Begins
6
SAT Exams
11-12
Secondary Production
19
Students dismissed at noon
Dec 22-Jan 9
Winter Break
29
Independence Day
Dec 22-Jan 9
Winter Break
10
Official VEX Event - Qualifier for ACAMIS Nationals (Tentative)
12
Welcome back
23
S1 Reports Issued
23
End of First Semester (90 days)
29
G5 PYP Exhibition Retreat Parent Info Session
Jan 30-Feb 1
EAISAC Festival of Arts @ISB
January 2026
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Jan 30-Feb 1
EAISAC Festival of Arts @ISB
2
S2 New Family Orientation
4-9
EAISAC HS BB @FIS
12
CCA2 Ends
12
3Way Conferences (PM)
13
3 Way Conferences (Day)
17-20
Tsagaan Sar (Lunar New Year)Tentative (floating days in lieu)
21-22
Official VEX Event - Northern Region (Tentative)
25-26
DP2 Mock Exams
27-28
EAISAC MS VB @ISU
February 2026
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2-6
DP2 Mock Exams
7-8
ACAMIS Finals (Tentative)
8
Women's Day
9
CCA3 Begins
14
SAT Exams
17
MYP PP
17
DP Visual Arts Exhibition
17
G10 Parent DP Info Evening
17
TOK Exhibitions
24
HS Careers Day
25-27
G5 PYP Exhibition Retreat
30-31
Spring MAP Testing
March 2026
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End of Third Quarter (45 days)
1
Spring MAP Testing (Make Ups)
6-10
Spring Break
15-19
ACAMIS Badminton Division 3 @ISU
17
G12 Goodbye Assembly
22
Earth Day
24-25
EAISAC HS FB @ISB
24
Early Closure Day for PD
27
DP2 Exams Begin
30
G3 & 4 Camp Parent Info Session
30
Piano Recital
April 2026
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SAT Exams
7-8
PS Spring Concert
7
CCA3 Ends
8-10
EAISAC MS BB @NIS
13-15
G3 & G4 Camp
16
Run4Water
20
DP2 Exams End
21
Celebration of Learning & Creativity
22
Athletic Celebration
23
HS Prom
27
Graduation
29
Buddha's Birthday (floating day in lieu) Tentative
May 2026
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Children's Day
2-5
DP1 Exams
5-6
EAISAC MS Jamboree
6
SAT Exams
11
Field Day
12
S2 Report Card Issued
12
End of Second Semester (90 days)-Noon Dismissal
June 2026
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CONNECT
Address
Four Seasons Garden, Khan-Uul District, 18 Khoroo, PO Box 36/10, Ulaanbaatar, Mongolia-17032
Phone
+976 7016 0010
Fax
+976 7016 0012
Working Days/Hours
School office work hours are from Monday to Friday 07:30AM-04:30PM. School is closed during public holidays.
admissions@isumongolia.edu.mn
Explore More
ABOUT ISU
ADMISSIONS
ACADEMICS
COMMUNITY
WORKING at ISU
SCHOOL CALENDAR
NEWS
SITEMAP
ISU is an independent, non-profit, co-educational day school offering the International Baccalaureate curriculum from Pre-School to Grade 12. Our campus is located in the city of Ulaanbaatar, the capital of our host country, Mongolia.
CONTACT US
DIRECTIONS