2026-2027 School Calendar August 2026 (9 days) Sun
Mon
Tue
Wed
August 2026
Thur
Fri
Sat
February 2027 (14 days)
10/13 First Day for New Faculty / Returning Faculty
1
12 HM The Queen's Mother's Birthday
2
3
4
5
6
7
8
19 First Day of Academic Year
9
10
11
12
13
14
15
27-29 G12 University Applications Trip
16
17
18
19
20
21
22
31 @SA/CMA Semester 1 starts
23
24
25
26
27
28
29
30
31
School Holidays
Regular School Days
Sun
Mon
Tue
Wed
Thur
Fri
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Sat
28
September 2026 3-5 Grade 11 DP Retreat / Grade 10 Bonding Trip 6-11 IB/CIS/NEASC Synchronized Visit
September 2026 (22 days) Sun
Mon
10-12 Grade 9 Bonding Trip
Tue
Wed
Thur
Fri
Sat
14-18 EY/PY/MYP/DP Back to School Week
1
2
3
4
5
17-19 Grade 8 Bonding Trip
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Mon
Tue
Wed
March 2027 (21 days) Regular School Days
24 MYP/DP Wai Kru Ceremony October 2026 1 EY/PY Wai Kru Ceremony 3-5
October 2026 (15 days) Sun
Sat
Regular School Day
Sun
Mon
Tue
Wed
Thur
Fri
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Sun
Mon
Thur
Fri
Sat
1
2
3
9
10
5 Professional Day for Teachers 3-5 IBO Scheduled Workshops held @Concordian School Holidays
12-16 October Break
Thur
Fri
Sat
23 Chulalongkorn Day
1
2
3
30 End of First Quarter
Regular School Day
April 2027 (16 days)
4
Tue
Wed
5
6
7
8
4
5
6
7
8
9
10
November 2026
11
12
13
14
15
16
17
11
12
13
14
15
16
17
5/6 Half Day / Full Day Whole School Parent-Teacher Conferences (PTC)
18
19
20
21
22
23
24
18
19
20
21
22
23
24
25
26
27
28
29
30
25
26
27
28
29
30
31
November 2026 (20 days)
16-20
G9 (8-20) - WWW / China Exchange Trip G5 (18-20), G6 (17-20), G7-8 (16-20) - WWW G10 (14-19) / G11 (16-20) - WWW / School Build G12 (16-20) - Focus Week
PK-G4 / G12 Regular Days May 2027 (20 days)
23 School Holiday
School Holiday
24 Loy Krathong
Regular School Day
Sun
Mon
Tue
Wed
Thur
Fri
Sat
1
2
3
4
5
6
7
8
9
10
11
12
13
14
5 Father's Day
15
16
17
18
19
20
21
17-5 Winter Break
22
23
24
25
26
27
28
29
30
Sun
Mon
Tue
Wed
Thur
Fri
2
3
4
5
6
7
8
Weekend
9
10
11
12
13
14
15
School Holiday
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Sun
Mon
Fri
Sat
1
2
3
4
5
6
7
8
9
10
11
12
December 2026
January 2027 11/22 @SA/CMA Semester 2 starts / End of 1st Semester
Regular School Day
Sat 1
February 2027 December 2026 (12 days) Sun
Mon
6
7
13 20 27
Thur
5-12 Chinese New Year Break Fri
Sat
School Holiday
Tue
Wed
March 2027
1
2
3
4
5
12 Professional Day for Teachers
8
9
10
11
12
19 School Holiday
14
15
16
17
18
19
21
22
23
24
25
26
28
29
30
31
School Holidays
April 2027 2 End of Third Quarter
June 2027 (13 days) Tue
Wed
Thur
13
14
15
16
17
18
19
Regular School Days
20
21
22
23
24
25
26
School Holiday
27
28
29
30
Sun
Mon
Tue
Thur
Fri
Sat
1
2
3
9-16 Songkran Break May 2027
January 2027 (18 days) Sun
Mon
Tue
Wed
Thur
4 Coronation Day Fri
Sat
1
2
School Holiday
22 Senior Valedictory Ceremony
July 2027 (0 day) Wed
June 2027
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
3 HM The Queen's Birthday
24
25
26
27
28
29
30
11 EY/PY Student Led Conferences
31
Weekend
2
Afternoon PTC (specific students by teacher's request) & MYP Student-Led Conferences
14-15 G11 Career Prep Days 16 K3/G5 Graduations
Regular School Day School Holiday
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Regular School Day
Updated: July 16, 2026
18 Last Day of the Academic Year Events for students, regular day or half day
21-9 Summer School
Back to School Week
Events for all students
Beginning School Year / End Quarter, Semester, School Year
G5-10 Week Without Walls / G11 School Build
Professional Day: No school
School Holiday: No School for Students & Teachers
Summer School
Please call 02-034-9000 Ext. 211, 212 to schedule an appointment for a School Tour or Admissions Inquiry.
Student Contact Days: 180