June 1, 2031
Andorra- Pentecost
Austria- Pentecost
Barbados- Pentecost
Burkina Faso- Pentecost
Republic of the Congo- Pentecost
Switzerland- Pentecost
China- Children's Day
Cape Verde- Children's Day
Cyprus- Pentecost
Denmark- Pentecost
Estonia- Pentecost
Finland- Pentecost
Faroe Islands- Pentecost
Greenland- Pentecost
Greece- Pentecost
Hungary- Pentecost
Indonesia- Pancasila Day
Iceland- Pentecost
Kenya- Madaraka Day
Malaysia- Gawai Dayak
Nicaragua- Children's Day
Netherlands- Pentecost
Norway- Pentecost
Poland- Pentecost
Romania- Children's Day
- Pentecost
Sweden- Pentecost
Slovenia- Pentecost
Svalbard & Jan Mayen- Pentecost
Sint Maarten- Pentecost
Ukraine- Pentecost
June 2, 2031
- Andorra
- Whit Monday
Antigua & Barbuda- Whit Monday
Anguilla- Whit Monday
- Austria
- Whit Monday
Australia- Reconciliation Day (ACT)
- Western Australia Day (WA)
- Barbados
- Whit Monday
Belgium- Whit Monday
Benin- Whit Monday
St. Barths- Whit Monday
Bahamas- Whit Monday
Central African Republic- Whit Monday
- Republic of the Congo
- Whit Monday
- Switzerland
- Whit Monday
Republic of Côte d'Ivoire- Whit Monday
Cook Islands- Queen's Birthday
Germany- Whit Monday
- Denmark
- Whit Monday
Dominica- Whit Monday
Spain- Whit Monday
- Faroe Islands
- Whit Monday
France- Whit Monday
Gabon- Whit Monday
Grenada- Whit Monday
French Guiana- Whit Monday
- Greenland
- Whit Monday
Guadeloupe- Whit Monday
- Greece
- Whit Monday
- Hungary
- Whit Monday
Ireland- First Monday in June
- Iceland
- Whit Monday
Italia- Republic Day
- Whit Monday (32)
- Kenya
- Madaraka Day (substitute day)
St. Kitts & Nevis- Whit Monday
St. Lucia- Whit Monday
Lichtenstein- Whit Monday
Luxembourg- Whit Monday
Monaco- Whit Monday
St. Martin- Whit Monday
Madagascar- Whit Monday
Martinique- Whit Monday
Montserrat- Whit Monday
- Malaysia
- Yang di-Pertuan Agong's Birthday
- Gawai Dayak (13)
New Caledonia- Whit Monday
- Netherlands
- Whit Monday
- Norway
- Whit Monday
New Zealand- King's Birthday
St. Pierre & Miquelon- Whit Monday
Réunion- Whit Monday
- Romania
- Whit Monday
St. Helena- Whit Monday
- Svalbard & Jan Mayen
- Whit Monday
Senegal- Whit Monday
Togolese Republic- Whit Monday
- Ukraine
- Pentecost
United States of America- Jefferson Davis' birthday
St. Vincent & Grenadines- Whit Monday
British Virgin Islands- Whit Monday
Mayotte- Whit Monday
June 5, 2031
Republic of Equatorial Guinea- President's Day
Iran- Revolt of Khordad 15
- Faroe Islands
- Constitution Day
June 6, 2031
- Bahamas
- Randol Fawkes Labour Day
South Korea- Memorial Day
- Sweden
- National Day
June 8, 2031
- Senegal
- Magal de Touba
June 9, 2031
- Anguilla
- Celebration of the Birthday of Her Majesty the Queen
- Australia
- King's Birthday
Ã…land Islands- Autonomy Day
Western Sahara- Day of the Martyrs
- Montserrat
- Queen's Birthday Celebration
Turks & Caicos Islands- Queen's Birthday
Uganda- National Heroes Day
June 10, 2031
- Republic of the Congo
- Fête de la commémoration de la conférence nationale souveraine
- France
- Abolition of Slavery
- French Guiana
- Abolition of Slavery
Portugal- Portugal Day
- Iran
- Arbaeen-e Hosseini
June 11, 2031
- United States of America
- Kamehameha Day
June 12, 2031
- Austria
- Corpus Christi
Bosnia and Herzegovina- Corpus Christi
Bolivia- Corpus Christi
- Switzerland
- Corpus Christi
- Germany
- Corpus Christi
Dominican Republic- Corpus Christi
- Spain
- Corpus Christi
- Grenada
- Corpus Christi
- Republic of Equatorial Guinea
- Corpus Christi
Croatia- Corpus Christi
Haiti- Corpus Christi
- St. Lucia
- Corpus Christi
- Lichtenstein
- Corpus Christi
- Monaco
- Corpus Christi
Nigeria- Democracy Day
Philippines- Independence Day
- Poland
- Corpus Christi
- Portugal
- Corpus Christi
Paraguay- Chaco Armistice
Russia- Russia Day
Seychelles- Corpus Christi
San Marino- Corpus Christi
Trinidad & Tobago- Corpus Christi
Timor Leste- Corpus Christi
June 13, 2031
Isle of Man- Tourist Trophy, Senior Race Day
- Lichtenstein
- Feiertagsbrücke
- British Virgin Islands
- Sovereign’s Birthday
June 14, 2031
- United States of America
- Flag Day
June 15, 2031
Azerbaijan- National Salvation Day
Brazil- Aniversário do estado
- Malaysia
- Sultan of Kedah's Birthday
June 16, 2031
- Azerbaijan
- National Salvation Day (substitute day)
Bermuda- National Heroes Day
Colombia- Corpus Christi
Gibraltar- Queen's Birthday
South Africa- Youth Day
June 17, 2031
- Western Sahara
- Day of National Unity
- Iceland
- Icelandic National Day
- United States of America
- Bunker Hill Day
Papua New Guinea- King's Birthday
June 18, 2031
- Brazil
- Dia do evangélico
- Seychelles
- National Holiday
Cambodia- HM Queen Norodom Monineath Sihanouk the Queen-Mother's Birthday
- Iran
- Demise of Prophet Muhammad and Imam Hassan (Mujtaba)
June 19, 2031
American Samoa- Juneteenth
Guam- Juneteenth
Puerto Rico- Juneteenth
- Trinidad & Tobago
- Labour Day
- United States of America
- Juneteenth
U.S. Virgin Islands- Juneteenth
June 20, 2031
Argentina- National Flag Day
Eritrea- Martyrs' Day
- United States of America
- West Virginia Day
- Iran
- Martyrdom of Imam Reza
June 21, 2031
- Ã…land Islands
- Midsummer Day
- Bolivia
- Andean Amazonian Chaqueño New Year
Canada- National Indigenous Peoples Day
Chile- Indigenous People's Day
- Finland
- Midsummer Day
- Greenland
- National Day
- Sweden
- Midsummer Day
- Togolese Republic
- Day of the Martyrs
- Papua New Guinea
- June Solstice
June 22, 2031
- Croatia
- Anti-Fascist Struggle Day
June 23, 2031
- Switzerland
- Jura Plebiscite
- Colombia
- Sacred Heart
- Estonia
- Victory Day
- Luxembourg
- National Holiday
Latvia- Midsummer Eve
June 25, 2031
Mozambique- Independence Day
- Slovenia
- Statehood Day
June 26, 2031
- Azerbaijan
- Azerbaijan Armed Forces Day
- Madagascar
- Independence Day
Somalia- Independence of British Somaliland
June 27, 2031
Djibouti- Independence Day
June 29, 2031
- Brazil
- São Pedro
- Switzerland
- Saints Peter and Paul
- Chile
- Saints Peter and Paul
Malta- Saints Peter and Paul
Peru- Saints Peter and Paul
- Seychelles
- Independence Day
Vatican City- Saints Peter and Paul
June 30, 2031
Democratic Republic of the Congo- Independence Day
- Central African Republic
- General Prayer Day
- Colombia
- Saints Peter and Paul
Egypt- 30 June Day
Guatemala- Army Day
- Ukraine
- Constitution Day (substitute day)
- British Virgin Islands
- Virgin Islands Day
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