| Date | Weekday | Public holiday name | |
|---|---|---|---|
| May 1 | Wednesday | Lei Day | |
| May 1 | Wednesday | Law Day | |
| May 1 | Wednesday | Loyalty Day | |
| May 2 | Thursday | World Tuna Day | |
| May 2 | Thursday | National Day of Prayer | |
| May 3 | Friday | Kentucky Oaks | |
| May 3 | Friday | World Press Freedom Day | |
| May 3 | Friday | Orthodox Good Friday | |
| May 4 | Saturday | National Explosive Ordnance Disposal (EOD) Day | |
| May 4 | Saturday | Orthodox Holy Saturday | |
| May 4 | Saturday | Kentucky Derby | |
| May 4 | Saturday | Kent State Shootings Remembrance | |
| May 4 | Saturday | Rhode Island Independence Day | |
| May 5 | Sunday | Cinco de Mayo | |
| May 5 | Sunday | Orthodox Easter | |
| May 6 | Monday | National Nurses Day | |
| May 6 | Monday | Orthodox Easter Monday | |
| May 6 | Monday | Yom HaShoah | |
| May 8 | Wednesday | Truman Day | |
| May 8 | Wednesday | World Ovarian Cancer Day | |
| May 8 | Wednesday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War | |
| May 9 | Thursday | Ascension Day | |
| May 10 | Friday | Confederate Memorial Day | |
| May 10 | Friday | Military Spouse Appreciation Day | |
| May 11 | Saturday | World Migratory Bird Day | |
| May 12 | Sunday | Mother's Day | |
| May 12 | Sunday | International Nurses Day | |
| May 14 | Tuesday | Primary Election Day | |
| May 14 | Tuesday | Yom Ha'atzmaut | |
| May 15 | Wednesday | International Day of Families | |
| May 15 | Wednesday | Peace Officers Memorial Day | |
| May 17 | Friday | National Defense Transportation Day | |
| May 17 | Friday | World Information Society Day | |
| May 18 | Saturday | Preakness Stakes | |
| May 18 | Saturday | Armed Forces Day | |
| May 19 | Sunday | Pentecost | |
| May 20 | Monday | World Autoimmune / Autoinflammatory Arthritis Day | |
| May 20 | Monday | Whit Monday | |
| May 21 | Tuesday | World Day for Cultural Diversity for Dialogue and Development | |
| May 22 | Wednesday | National Maritime Day | |
| May 22 | Wednesday | Harvey Milk Day | |
| May 22 | Wednesday | International Day for Biological Diversity | |
| May 22 | Wednesday | Emergency Medical Services for Children Day | |
| May 23 | Thursday | International Day to End Obstetric Fistula | |
| May 25 | Saturday | African Liberation Day | |
| May 25 | Saturday | National Missing Children's Day | |
| May 26 | Sunday | Trinity Sunday | |
| May 26 | Sunday | Lag BaOmer | |
| May 27 | Monday | Jefferson Davis' Birthday | |
| May 27 | Monday | Memorial Day | |
| May 29 | Wednesday | International Day of United Nations Peacekeepers | |
| May 30 | Thursday | Corpus Christi | |
| May 31 | Friday | World No Tobacco Day | |
| Date | Weekday | Public holiday name |
|---|---|---|
| May 1 | Thursday | Lei Day |
| May 1 | Thursday | Law Day |
| May 1 | Thursday | National Day of Prayer |
| May 1 | Thursday | Yom Ha'atzmaut |
| May 1 | Thursday | Loyalty Day |
| May 2 | Friday | Kentucky Oaks |
| May 2 | Friday | World Tuna Day |
| May 3 | Saturday | National Explosive Ordnance Disposal (EOD) Day |
| May 3 | Saturday | Kentucky Derby |
| May 3 | Saturday | World Press Freedom Day |
| May 4 | Sunday | Kent State Shootings Remembrance |
| May 4 | Sunday | Rhode Island Independence Day |
| May 5 | Monday | Cinco de Mayo |
| May 6 | Tuesday | National Nurses Day |
| May 8 | Thursday | Truman Day |
| May 8 | Thursday | World Ovarian Cancer Day |
| May 8 | Thursday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War |
| May 9 | Friday | Military Spouse Appreciation Day |
| May 9 | Friday | Confederate Memorial Day observed |
| May 10 | Saturday | World Migratory Bird Day |
| May 10 | Saturday | Confederate Memorial Day |
| May 11 | Sunday | Mother's Day |
| May 12 | Monday | International Nurses Day |
| May 15 | Thursday | International Day of Families |
| May 15 | Thursday | Peace Officers Memorial Day |
| May 16 | Friday | National Defense Transportation Day |
| May 16 | Friday | Lag BaOmer |
| May 17 | Saturday | World Information Society Day |
| May 17 | Saturday | Preakness Stakes |
| May 17 | Saturday | Armed Forces Day |
| May 20 | Tuesday | World Autoimmune / Autoinflammatory Arthritis Day |
| May 21 | Wednesday | Emergency Medical Services for Children Day |
| May 21 | Wednesday | World Day for Cultural Diversity for Dialogue and Development |
| May 22 | Thursday | International Day for Biological Diversity |
| May 22 | Thursday | National Maritime Day |
| May 22 | Thursday | Harvey Milk Day |
| May 23 | Friday | International Day to End Obstetric Fistula |
| May 25 | Sunday | National Missing Children's Day |
| May 25 | Sunday | African Liberation Day |
| May 26 | Monday | Jefferson Davis' Birthday |
| May 26 | Monday | Memorial Day |
| May 29 | Thursday | Ascension Day |
| May 29 | Thursday | International Day of United Nations Peacekeepers |
| May 31 | Saturday | World No Tobacco Day |
| Date | Weekday | Public holiday name |
|---|---|---|
| May 1 | Friday | Kentucky Oaks |
| May 1 | Friday | Lei Day |
| May 1 | Friday | Law Day |
| May 1 | Friday | Loyalty Day |
| May 2 | Saturday | National Explosive Ordnance Disposal (EOD) Day |
| May 2 | Saturday | World Tuna Day |
| May 2 | Saturday | Kentucky Derby |
| May 3 | Sunday | World Press Freedom Day |
| May 4 | Monday | Rhode Island Independence Day |
| May 4 | Monday | Kent State Shootings Remembrance |
| May 5 | Tuesday | Cinco de Mayo |
| May 5 | Tuesday | Lag BaOmer |
| May 6 | Wednesday | National Nurses Day |
| May 7 | Thursday | National Day of Prayer |
| May 8 | Friday | Military Spouse Appreciation Day |
| May 8 | Friday | Truman Day |
| May 8 | Friday | World Ovarian Cancer Day |
| May 8 | Friday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War |
| May 9 | Saturday | World Migratory Bird Day |
| May 10 | Sunday | Mother's Day |
| May 10 | Sunday | Confederate Memorial Day |
| May 11 | Monday | Confederate Memorial Day observed |
| May 12 | Tuesday | International Nurses Day |
| May 12 | Tuesday | Primary Election Day |
| May 14 | Thursday | Ascension Day |
| May 15 | Friday | International Day of Families |
| May 15 | Friday | National Defense Transportation Day |
| May 15 | Friday | Peace Officers Memorial Day |
| May 16 | Saturday | Preakness Stakes |
| May 16 | Saturday | Armed Forces Day |
| May 17 | Sunday | World Information Society Day |
| May 20 | Wednesday | Emergency Medical Services for Children Day |
| May 20 | Wednesday | World Autoimmune / Autoinflammatory Arthritis Day |
| May 21 | Thursday | World Day for Cultural Diversity for Dialogue and Development |
| May 22 | Friday | International Day for Biological Diversity |
| May 22 | Friday | National Maritime Day |
| May 22 | Friday | Harvey Milk Day |
| May 22 | Friday | Shavuot |
| May 23 | Saturday | International Day to End Obstetric Fistula |
| May 24 | Sunday | Pentecost |
| May 25 | Monday | National Missing Children's Day |
| May 25 | Monday | Memorial Day |
| May 25 | Monday | Jefferson Davis' Birthday |
| May 25 | Monday | African Liberation Day |
| May 25 | Monday | Whit Monday |
| May 27 | Wednesday | Eid al-Adha |
| May 29 | Friday | International Day of United Nations Peacekeepers |
| May 31 | Sunday | Trinity Sunday |
| May 31 | Sunday | World No Tobacco Day |
| Date | Weekday | Public holiday name |
|---|---|---|
| May 1 | Saturday | Loyalty Day |
| May 1 | Saturday | Orthodox Holy Saturday |
| May 1 | Saturday | National Explosive Ordnance Disposal (EOD) Day |
| May 1 | Saturday | Kentucky Derby |
| May 1 | Saturday | Lei Day |
| May 1 | Saturday | Law Day |
| May 2 | Sunday | World Tuna Day |
| May 2 | Sunday | Orthodox Easter |
| May 3 | Monday | World Press Freedom Day |
| May 3 | Monday | Orthodox Easter Monday |
| May 4 | Tuesday | Yom HaShoah |
| May 4 | Tuesday | Rhode Island Independence Day |
| May 4 | Tuesday | Kent State Shootings Remembrance |
| May 5 | Wednesday | Cinco de Mayo |
| May 6 | Thursday | Ascension Day |
| May 6 | Thursday | National Nurses Day |
| May 6 | Thursday | National Day of Prayer |
| May 7 | Friday | Military Spouse Appreciation Day |
| May 7 | Friday | Truman Day observed |
| May 8 | Saturday | World Migratory Bird Day |
| May 8 | Saturday | Truman Day |
| May 8 | Saturday | World Ovarian Cancer Day |
| May 8 | Saturday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War |
| May 9 | Sunday | Mother's Day |
| May 10 | Monday | Confederate Memorial Day |
| May 12 | Wednesday | International Nurses Day |
| May 12 | Wednesday | Yom Ha'atzmaut |
| May 15 | Saturday | International Day of Families |
| May 15 | Saturday | Peace Officers Memorial Day |
| May 15 | Saturday | Preakness Stakes |
| May 15 | Saturday | Armed Forces Day |
| May 16 | Sunday | Pentecost |
| May 17 | Monday | Eid al-Adha |
| May 17 | Monday | World Information Society Day |
| May 17 | Monday | Whit Monday |
| May 19 | Wednesday | Emergency Medical Services for Children Day |
| May 20 | Thursday | World Autoimmune / Autoinflammatory Arthritis Day |
| May 21 | Friday | National Defense Transportation Day |
| May 21 | Friday | World Day for Cultural Diversity for Dialogue and Development |
| May 22 | Saturday | International Day for Biological Diversity |
| May 22 | Saturday | National Maritime Day |
| May 22 | Saturday | Harvey Milk Day |
| May 23 | Sunday | International Day to End Obstetric Fistula |
| May 23 | Sunday | Trinity Sunday |
| May 25 | Tuesday | Lag BaOmer |
| May 25 | Tuesday | National Missing Children's Day |
| May 25 | Tuesday | African Liberation Day |
| May 27 | Thursday | Corpus Christi |
| May 29 | Saturday | International Day of United Nations Peacekeepers |
| May 31 | Monday | Memorial Day |
| May 31 | Monday | Jefferson Davis' Birthday |
| May 31 | Monday | World No Tobacco Day |