May 9 | Thursday | Ascension Day | Andorra, Austria, Australia, Aruba, Belgium, Burkina Faso, Burundi, Benin, St. Barts, Botswana, Canada, Central African Republic, Congo, Switzerland, Cote d'Ivoire, Cameroon, Curaçao, Czechia, Germany, Denmark, Finland, Faroe Islands, France, Gabon, French Guiana, Greenland, Guadeloupe, Indonesia, Iceland, Lebanon, Liechtenstein, Lesotho, Luxembourg, Monaco, Saint Martin, Madagascar, Martinique, Namibia, New Caledonia, Netherlands, Norway, French Polynesia, Saint Pierre and Miquelon, Portugal, Reunion, Sweden, Senegal, Sint Maarten, Eswatini, Togo, United Kingdom, United States, Vatican City (Holy See), Venezuela, Vanuatu, Wallis and Futuna, Mayotte |
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| Victory and Peace Day | Armenia |
| Victory Day over Fascism | Azerbaijan |
| Victory Day | Bosnia and Herzegovina, Belarus, Georgia, Kyrgyzstan, Kazakhstan, Moldova, Serbia, Russia, Tajikistan, Turkmenistan |
| Fathers' Day | Germany |
| Liberation Day (except Alderney and Sark) | Guernsey |
| Europe Day and Victory Day Over Fascism | Croatia, Luxembourg, Moldova, Ukraine, Kosovo |
| Liberation Day | Jersey |
| Remembrance Day | Uzbekistan |
May 10 | Friday | Day after Ascension Day | Belgium |
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| Constitution Day | Micronesia |
| Liberation Day (only Sark) | Guernsey |
| Mothers’ Day (Working Mothers Only) | Guatemala, El Salvador |
| Joint Holiday after Ascension Day | Indonesia |
| National Tree Planting Day | Kenya |
| Monarchy Day | Romania |
| National Independence Day | Romania |
| Victory Day Holiday | Russia |
| Census Day | Uganda |
| Confederate Memorial Day | United States |
| Native American Day | United States |
May 12 | Sunday | Mothers' Day | Austria, Barbados, Bangladesh, Belgium, Benin, Bermuda, Brazil, The Bahamas, Botswana, Canada, Congo, Switzerland, Colombia, Cuba, Cabo Verde, Czechia, Germany, Denmark, Estonia, Finland, Gabon, Grenada, Ghana, Greece, Hong Kong, Honduras, Croatia, Iceland, Italy, Jamaica, Japan, Kenya, Cayman Islands, Liechtenstein, Sri Lanka, Latvia, Malta, Netherlands, New Zealand, Peru, Puerto Rico, Chad, Trinidad and Tobago, Tanzania, Ukraine, Uganda, United States, US Virgin Islands, South Africa, Zambia, Zimbabwe |
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| Day of the National Emblem and Flag of Belarus | Belarus |
| St Andrew's Day | Georgia |
| Liberation and Resistance Holiday | Lebanon |
| St. Joana's Day | Portugal |
| Fathers' Day | Romania |
May 13 | Monday | Ascension Day | Colombia |
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| Girmit Day | Fiji |
| Yom HaZikaron | Israel |
| Memorial Day/Parents' Day | Moldova |
| Gospel Day | Tuvalu |
| Mother's Day | Samoa |
May 14 | Tuesday | Yom HaAtzmaut | Australia, Canada, Israel, United Kingdom, United States |
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| Radonitsa | Belarus |
| King's Birthday | Cambodia |
| National Unification Day | Liberia |
| Kamuzu Day | Malawi |
| National Holiday | Paraguay |
| Primary Election Day | United States |
May 15 | Wednesday | Family Day | Armenia, Moldova, Mongolia, Ukraine |
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| Day of Customs and Traditions | Burkina Faso |
| Teacher's Day | Colombia, South Korea |
| Buddha's Birthday | Hong Kong, Macau |
| Buddha’s Birthday | South Korea |
| Independence Day | Paraguay |
May 16 | Thursday | Day of Students and Youth | Armenia |
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| SPLA Day | South Sudan |