| Agriculture and Labor Day | Haiti |
| Ascension Day | Madagascar |
| Constitution Day | Marshall Islands |
| Early May Bank Holiday | England and Wales, Northern Ireland, Scotland |
| International Labor Day | Ethiopia, Kyrgyzstan, Vietnam |
| International Labour Day | Cambodia |
| International Workers' Day | Angola |
| Kazakhstan Peoples Unity Day | Kazakhstan |
| Labor Day | Algeria, Argentina, Bahrain, Belarus, Belgium, Benin, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Bulgaria, Burkina Faso, Burundi, Cameroon, Cape Verde, Central African Republic, Chad, Chile, Colombia, Comoros, Costa Rica, Cote d'Ivoire, Croatia, Cuba, Cyprus, Czech Republic, Democratic Republic of Congo, Djibouti, Dominican Republic, Ecuador, Egypt, El Salvador, France, Gabon, Guatemala, Guinea, Guinea-Bissau, Honduras, Hungary, Italy, Jordan, Laos, Latvia, Lebanon, Liechtenstein, Mali, Mauritania, Mexico, Moldova, Monaco, Morocco, Nicaragua, Niger, Nigeria, North Korea, Norway, Pakistan, Panama, Paraguay, Peru, Philippines, Poland, Portugal, Republic of Congo, Republic of Kosovo, Romania, Rwanda, San Marino, Sao Tome and Principe, Senegal, Spain, St. Lucia, Suriname, Sweden, Tajikistan, Tanzania, Timor-Leste, Togo, Tunisia, Uganda, Ukraine, Uruguay, Venezuela, Yemen, Dominica |
| Labour Day | Andorra, Armenia, Barbados, Belize, Greece, Grenada, Hong Kong, Iceland, Kenya, Lithuania, Malawi, Malaysia, Mauritius, Seychelles, Singapore, Vanuatu, Zambia, Zimbabwe, Antigua and Barbuda, St. Kitts and Nevis |
| May Day | Albania, Bangladesh, Eritrea, Finland, Gambia, Germany, Ghana, Guyana, Iraq, Luxembourg, Macedonia, Montenegro, Myanmar, Nepal, Serbia, Slovakia, Sri Lanka, Syria, Gibraltar |
| May Day Holiday | Ireland |
| Mothers' Day | Lithuania |
| Orthodox Easter | Albania, Lebanon |
| Spring and Labor Day | Russian Federation |
| Spring Day | Estonia |
| Staatsfeiertag | Austria |
| Tensae | Eritrea |
| Workers Day | Namibia |
| Workers' Day | Lesotho, Malta, Mozambique, South Africa, Swaziland |