Calendars - Seoul International School

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December 2025

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Sunday, November 30

Thanksgiving Holiday (School Closed)

12:00 AM - 5:00 PM

Monday, December 1

Tuesday, December 2

Activity Buses

5:10 PM - 6:10 PM

Wednesday, December 3

Late Activity Buses

7:00 PM - 8:00 PM

Thursday, December 4

Activity Buses

5:10 PM - 6:10 PM

Friday, December 5

Saturday, December 6

Sunday, December 7

Monday, December 8

Full Faculty Meetings

3:00 PM - 5:00 PM

Tuesday, December 9

Activity Buses

5:10 PM - 6:10 PM

Wednesday, December 10

Activity Buses

5:10 PM - 6:10 PM

Thursday, December 11

Friday, December 12

Last Day of 1st Semester (11:00am Dismissal)

8:00 AM - 11:00 AM

Saturday, December 13

Winter Vacation (School Closed)

8:00 AM - 11:59 PM

Sunday, December 14

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 15

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

CPR & FirstAid for Korean Staff

8:30 AM - 12:30 PM

Tuesday, December 16

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 17

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 18

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, December 19

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 20

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 21

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 22

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 23

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 24

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 25

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, December 26

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 27

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 28

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 29

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 30

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 31

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, January 1

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, January 2

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, January 3

Winter Vacation (School Closed)

12:00 AM - 5:00 PM

Elementary School Calendar

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December 2025

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Sunday, November 30

Thanksgiving Holiday (School Closed)

12:00 AM - 5:00 PM

Monday, December 1

Suzuki Practice 1

9:10 AM - 9:50 AM

Annex Building-B1-102-Recording Studio (5)

Tuesday, December 2

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Wednesday, December 3

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

Thursday, December 4

Grade1 Trip to Seoul Children's Museum

All Day

Grade5 trip to Ice Rink

All Day

Suzuki Practice K-2

11:00 AM - 11:30 AM

Annex Building-B1-102-Recording Studio (5)

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Friday, December 5

Staff Holiday Party

5:00 PM - 8:00 PM

Saturday, December 6

Sunday, December 7

Monday, December 8

Suzuki Practice 1

9:10 AM - 9:50 AM

Annex Building-B1-102-Recording Studio (5)

Tuesday, December 9

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Wednesday, December 10

ES Winter Class Party

All Day

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

Thursday, December 11

ES Winter Concert (PK - G2)

9:40 AM - 11:00 AM

Suzuki Practice K-2

11:00 AM - 11:30 AM

Annex Building-B1-102-Recording Studio (5)

ES Winter Concert (G3-G5)

1:40 PM - 3:00 PM

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Friday, December 12

ES Spirit Club Assembly

8:00 AM - 9:45 AM

Main Building-1F-Auditorium (150)

Last Day of 1st Semester (11:00am Dismissal)

8:00 AM - 11:00 AM

ES Spirit Club Assembly

8:05 PM - 9:45 PM

Main Building-1F-Auditorium (150)

Saturday, December 13

Winter Vacation (School Closed)

8:00 AM - 11:59 PM

Sunday, December 14

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 15

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Suzuki Practice 1

9:10 AM - 9:50 AM

Annex Building-B1-102-Recording Studio (5)

Tuesday, December 16

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Wednesday, December 17

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 18

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Suzuki Practice K-2

11:00 AM - 11:30 AM

Annex Building-B1-102-Recording Studio (5)

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Friday, December 19

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 20

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 21

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 22

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Suzuki Practice 1

9:10 AM - 9:50 AM

Annex Building-B1-102-Recording Studio (5)

Tuesday, December 23

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Wednesday, December 24

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 25

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Suzuki Practice K-2

11:00 AM - 11:30 AM

Annex Building-B1-102-Recording Studio (5)

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Friday, December 26

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 27

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 28

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 29

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Suzuki Practice 1

9:10 AM - 9:50 AM

Annex Building-B1-102-Recording Studio (5)

Tuesday, December 30

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Wednesday, December 31

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, January 1

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Suzuki Practice K-2

11:00 AM - 11:30 AM

Annex Building-B1-102-Recording Studio (5)

ES ASE Dance/Drama

3:30 PM - 4:30 PM

Elementary School

Friday, January 2

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, January 3

Winter Vacation (School Closed)

12:00 AM - 5:00 PM

Middle School Calendar

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December 2025

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Sunday, November 30

Thanksgiving Holiday (School Closed)

12:00 AM - 5:00 PM

Monday, December 1

Day B

All Day

Tuesday, December 2

Day A

All Day

MS AQT Practice

3:00 PM - 5:00 PM

MS Table Tennis Practice

3:00 PM - 5:00 PM

Wednesday, December 3

Day B

All Day

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

Thursday, December 4

Day A

All Day

G7 Community Meeting

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

MS AQT Practice

3:00 PM - 5:00 PM

MS Table Tennis Practice

3:00 PM - 5:00 PM

Friday, December 5

Day B

All Day

MS Winter Music Assembly

9:20 AM - 9:50 AM

Main Building-1F-Auditorium (150)

Staff Holiday Party

5:00 PM - 8:00 PM

Saturday, December 6

MS KAIAC Table Tennis Championships @ KIS

7:45 AM - 2:00 PM

Korea International School - Pangyo Campus, 27 Daewangpangyo-ro 385beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, South Korea

Sunday, December 7

Monday, December 8

Day A

All Day

Tuesday, December 9

Day B

All Day

Wednesday, December 10

Day A

All Day

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

Thursday, December 11

Day B

All Day

Friday, December 12

Day A

All Day

End of Quarter 2

All Day

Last Day of 1st Semester (11:00am Dismissal)

8:00 AM - 11:00 AM

MS S1 Awards Assembly

10:00 AM - 11:00 AM

Main Building-1F-Auditorium (150)

Saturday, December 13

Winter Vacation (School Closed)

8:00 AM - 11:59 PM

Sunday, December 14

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 15

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 16

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 17

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 18

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, December 19

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 20

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 21

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 22

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 23

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 24

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 25

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, December 26

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 27

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 28

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 29

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 30

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 31

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, January 1

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, January 2

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, January 3

Winter Vacation (School Closed)

12:00 AM - 5:00 PM

High School Calendar

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December 2025

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Sunday, November 30

B/G Varsity Basketball @ HKIS Holiday Basketball Tournament (Hong Kong)

12:00 AM - 5:00 PM

Thanksgiving Holiday (School Closed)

12:00 AM - 5:00 PM

Monday, December 1

Day B

All Day

B/G Varsity Basketball @ HKIS Holiday Basketball Tournament (Hong Kong)

12:00 AM - 5:00 PM

HS ASR to Kickboxing

9:25 AM - 10:50 AM

CPR & FirstAid for HS Faculty & Leadership Team

3:00 PM - 6:00 PM

New Building-B3-Tiger Gym1, High_School

Tuesday, December 2

Day A

All Day

Wednesday, December 3

Day B

All Day

HS Swim @ GSIS

1:30 PM - 6:30 PM

Forensics Speech Practices

3:30 PM - 5:00 PM

HS Basketball - Home vs GSIS

3:30 PM - 7:00 PM

Thursday, December 4

Day A

All Day

Friday, December 5

Day B

All Day

SISMC (Math Competition)

1:10 PM - 1:40 PM

Main Building-2F-Atrium

Staff Holiday Party

5:00 PM - 8:00 PM

Saturday, December 6

SAT Testing

7:00 AM - 12:00 PM

Sunday, December 7

Monday, December 8

Day A

All Day

Celadon Ceramics Sale

9:20 AM - 9:50 AM

Main Building-2F-Atrium

Tuesday, December 9

Day B

All Day

Tiger Ambassadors Winter Party

12:40 PM - 1:40 PM

Main Building-2F-Atrium

Track Pre Season Training

3:15 PM - 4:45 PM

Field

Wednesday, December 10

Day A

All Day

Badminton season meeting

9:25 AM - 9:50 AM

Main Building-B1-Fitness/Dance Room/Yoga Studio (30)

HS Basketball @ GSIS

1:50 PM - 6:30 PM

HS Swim @ KIS

2:10 PM - 7:00 PM

Badminton open gym

3:10 PM - 5:00 PM

Forensics Speech Practices

3:30 PM - 5:00 PM

Thursday, December 11

Day B

All Day

HS GIN trip to Nepal

6:20 AM - 11:59 PM

Friday, December 12

Day A

All Day

HS GIN trip to Nepal

12:00 AM - 11:59 PM

Last Day of 1st Semester (11:00am Dismissal)

8:00 AM - 11:00 AM

HS UYSC trip to Chiang Mai, Thailand

2:15 PM - 11:59 PM

Saturday, December 13

HS GIN trip to Nepal

12:00 AM - 11:59 PM

HS UYSC trip to Chiang Mai, Thailand

12:00 AM - 11:59 PM

Winter Vacation (School Closed)

8:00 AM - 11:59 PM

Sunday, December 14

HS GIN trip to Nepal

12:00 AM - 11:59 PM

HS UYSC trip to Chiang Mai, Thailand

12:00 AM - 11:59 PM

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 15

HS GIN trip to Nepal

12:00 AM - 11:59 PM

HS UYSC trip to Chiang Mai, Thailand

12:00 AM - 11:59 PM

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 16

HS GIN trip to Nepal

12:00 AM - 11:59 PM

HS UYSC trip to Chiang Mai, Thailand

12:00 AM - 11:59 PM

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 17

HS GIN trip to Nepal

12:00 AM - 11:59 PM

HS UYSC trip to Chiang Mai, Thailand

12:00 AM - 11:59 PM

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 18

HS GIN trip to Nepal

12:00 AM - 11:59 PM

HS UYSC trip to Chiang Mai, Thailand

12:00 AM - 7:05 AM

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, December 19

HS GIN trip to Nepal

12:00 AM - 3:25 PM

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 20

HS GIN trip to Nepal

12:00 AM - 3:25 PM

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 21

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 22

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 23

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 24

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, December 25

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, December 26

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, December 27

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Sunday, December 28

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Monday, December 29

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Tuesday, December 30

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Wednesday, December 31

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Thursday, January 1

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Friday, January 2

Winter Vacation (School Closed)

12:00 AM - 11:59 PM

Saturday, January 3

Winter Vacation (School Closed)

12:00 AM - 5:00 PM

Athletics & Activities

High School Calendar

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December 2025

Sunday Monday Tuesday Wednesday Thursday Friday Saturday

Sunday, November 30

B/G Varsity Basketball @ HKIS Holiday Basketball Tournament (Hong Kong)

12:00 AM - 1:55 PM

Monday, December 1

B/G Varsity Basketball @ HKIS Holiday Basketball Tournament (Hong Kong)

12:00 AM - 1:55 PM

CPR & FirstAid for HS Faculty & Leadership Team

3:00 PM - 6:00 PM

New Building-B3-Tiger Gym1, High_School

Tuesday, December 2

HS Sports Practices

3:00 PM - 5:00 PM

(Gym)-Annex Building-B2-Tiger Gym 2, New Building-6F-Tiger Gym3, New Building-B3-Tiger Gym1

Wednesday, December 3

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

HS Swim @ GSIS

1:30 PM - 6:30 PM

HS Sports Practices

3:00 PM - 5:00 PM

(Gym)-Annex Building-B2-Tiger Gym 2, New Building-6F-Tiger Gym3, New Building-B3-Tiger Gym1

Forensics Speech Practices

3:30 PM - 5:00 PM

Main Building-2F-Atrium

HS Basketball - Home vs GSIS

3:30 PM - 7:00 PM

New Building-B3-Tiger Gym1, Main Building-B1-Fitness/Dance Room/Yoga Studio (30)

Thursday, December 4

G7 Community Meeting

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

MS Prelude Winter Concert

1:45 PM - 3:00 PM

Main Building-1F-Auditorium (150)

HS Sports Practices

3:00 PM - 5:00 PM

(Gym)-Annex Building-B2-Tiger Gym 2, New Building-6F-Tiger Gym3, New Building-B3-Tiger Gym1

MS Opus/Coda Winter Concert

4:00 PM - 5:00 PM

Main Building-1F-Auditorium (150)

Friday, December 5

SISMC (Math Competition)

1:10 PM - 1:40 PM

Main Building-2F-Atrium

HS Sports Practices

3:00 PM - 5:00 PM

(Gym)-Annex Building-B2-Tiger Gym 2, New Building-6F-Tiger Gym3, New Building-B3-Tiger Gym1

Saturday, December 6

Sunday, December 7

Monday, December 8

Celadon Ceramics Sale

9:20 AM - 9:50 AM

Main Building-2F-Atrium

Full Faculty Meetings

3:00 PM - 5:00 PM

Main Building-1F-Auditorium (150)

Tuesday, December 9

HS Sports Practices

3:00 PM - 5:00 PM

(Gym)-Annex Building-B2-Tiger Gym 2, New Building-6F-Tiger Gym3, New Building-B3-Tiger Gym1

Track Pre Season Training

3:15 PM - 4:45 PM

Field

Wednesday, December 10

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

Tiger Buddies

9:20 AM - 9:50 AM

New Building-B3-Tiger Gym1

Badminton season meeting

9:25 AM - 9:50 AM

Main Building-B1-Fitness/Dance Room/Yoga Studio (30)

HS Basketball @ GSIS

1:50 PM - 6:30 PM

HS Swim @ KIS

2:10 PM - 7:00 PM

HS Sports Practices

3:00 PM - 5:00 PM

(Gym)-Annex Building-B2-Tiger Gym 2, New Building-6F-Tiger Gym3, New Building-B3-Tiger Gym1

Badminton open gym

3:10 PM - 5:00 PM

Forensics Speech Practices

3:30 PM - 5:00 PM

Main Building-2F-Atrium

Thursday, December 11

ES Winter Concert (PK - G2)

9:40 AM - 11:00 AM

Main Building-1F-Auditorium (150)

ES Winter Concert (G3-G5)

1:40 PM - 3:00 PM

Main Building-1F-Auditorium (150)

Friday, December 12

ES Spirit Club Assembly

8:00 AM - 9:45 AM

Main Building-1F-Auditorium (150)

ES Spirit Club Assembly

8:05 PM - 9:45 PM

Main Building-1F-Auditorium (150)

Saturday, December 13

Sunday, December 14

Monday, December 15

Winter Vacation

All Day

CPR & FirstAid for Korean Staff

8:30 AM - 12:30 PM

Main Building-1F-Auditorium (150)

Tuesday, December 16

Winter Vacation

All Day

Wednesday, December 17

Winter Vacation

All Day

Thursday, December 18

Winter Vacation

All Day

Friday, December 19

Winter Vacation

All Day

Saturday, December 20

Sunday, December 21

Monday, December 22

Winter Vacation

All Day

Tuesday, December 23

Winter Vacation

All Day

Wednesday, December 24

Winter Vacation

All Day

Thursday, December 25

Winter Vacation

All Day

Friday, December 26

Winter Vacation

All Day

Saturday, December 27

Sunday, December 28

Monday, December 29

Winter Vacation

All Day

Tuesday, December 30

Winter Vacation

All Day

Wednesday, December 31

Winter Vacation

All Day

Thursday, January 1

Winter Vacation

All Day

Friday, January 2

Winter Vacation

All Day

Saturday, January 3

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