Month

Date

Occasion

January

Wednesday 1

Monday 6

New Year's Day

Epiphany

Thai / Polish

Polish

April

Monday 14

Monday 21

Songkran (Thai New Year)

Easter Monday

Thai

Polish

May

Thursday 1

Friday 2

Monday 5

Labour day

Substitution for Constitution Day

Substitution for Coronation Day

Thai /Polish 

Polish

Thai

June

Thursday 3

Thursday 19

H.M. Queen Suthida’s Birthday Anniversary

Corpus Christi

Thai

Polish

July

Monday 28

H. M. King Maha Vajiralongkorn’s Birthday Anniversary

Thai

August

Tuesday 12

Friday 15

H.M. Queen Sirikit The Queen Mother’s
Birthday Anniversary

Assumption Day

Thai

Polish

October

Monday 13

Thursday 23

Substitution H.M. King Bhumibol Adulyadej The Great Memorial Day

King Chulalongkorn Memorial Day

Thai

Thai

November

Monday 3

Tuesday 11

Substitution for All Saints Day

Independence Day

Polish

Polish

December

Friday 5

Thursday 25 

Friday 26

Wednesday 31

H.M. King Bhumibol Adulyadej The Great’s Birthday Anniversary, National Day, and Thai Father’s Day

Christmas Day

Second Day of Christmas

New Year Eve

Thai

Polish

Polish

Thai