Our calendars provide information on anniversaries, religious observances, national days, and celebrations around the world.
In addition, the calendars provide background links to the national websites and presidential proclamations for special day, week and month observances in the U.S., along with lunar and astronomical data.
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Asian/Pacific American Heritage Month
Bike Month Clean Air Month Nation Physical Fitness and Sports Month Older Americans Month Scholarship Month |
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| May | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | May |
1SUN |
(sunset 4/20 - sunset 5/2: commemorates Baha'u'llah's 1863 stay in "Garden of Ridvan" as God's messenger.) Judaism: Passover (Nisan 15-22) International Labor Day (Observed annually May 1 & 2) China: Birthday of Tin Hau (Celebration of the Goddess of the Sea to summon prosperity for the fishing year: 23rd day of the third lunar month) Latvia: Mother's Day (First Sunday in May) United States: Law Day (Established as an annual May 1 observance by 1958 Presidential Proclamation) United States: Loyalty Day (Established by 2003 Presidential Proclamation) Hawaii: Lei Day (Observed on May 1 since 1927) |
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2MON |
The Bahá'í Faith:
Festival of Ridván
(sunset 4/20 - sunset 5/2: commemorates Baha'u'llah's 1863 stay in "Garden of Ridvan" as God's messenger.) International Labor Day (Observed annually May 1 & 2) Antigua & Barbuda, St. Vincent & Grenadines: Labor Day (First Monday in May) Dominca, St. Kitts & Nevis: May Day (First Monday in May) Egypt: Sham El-Naseem (Ancient spring holiday on the Monday after the Orthodox Easter Sunday) England. Wales & Northern Ireland: Bank Holiday (First Monday in May) Ireland: Bank Holiday (First Monday in May) Moldova: Memorial Easter (Remembrance of the dead on the Monday following Orthodox Easter) Spain: Dos de Mayo/Independence Day (Commemorates of Six-Year War for Freedom that commenced with 5/2/1808 against Napoleon) |
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3TUE |
(Observed annually Tuesday of the first full week of May) (Observed annually on May 3 as per UN Resolution 4.3 adopted 1991) Japan: Constitution Day (Kenpo Kinenbi) (Observed to commemorate adoption of the Japanese constitution: 05/03/1947) Lithuania: Mother's Day ( First Tuesday in May) Poland: Constitution Day (Observed to commemorate adoption of the Polish constitution: 05/03/1791) |
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4WED |
Buddhists:
Vesak Day/Buddha Day
(Zen Buddhists: 4/8, Hong Kong: 4/30, Singapore, Malaysia, Indonesia: 5/7, Korea: 5/8, India: first full moon of May) China: Youth Day (Commemorates student protests against warlords and extension of Japanese influence: 05/04/1919) Japan: Bank Holiday ( Day between Constitution Memorial Day 5/3 and Children's Day 5/5) Namibia: Cassinga Day (In remembrance of those who died in the South African attack on Cassinga: 05/04/1978) Tonga: Birthday of H.R.H. Crown Prince Tupouto'a (Commemorates the birthday of Crown Prince Tupouto'a: 05/04/1948) Rhode Island: Independence Day (Commemorates Rhode Island's declaration of independence two months ahead of the other colonies: 05/04/1776) United States: National School Nurse Day (Observed the Wednesday of National Nurses Week) |
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5THU |
(Celebration of the Mexican victory in the Battle of Puebla, May 5, 1867)
(Observed the first Thursday of May) International Midwives Day (Observed annually since May 5, 1991) Ethiopia: Patriots Victory Day (Commemorates occupation of Addis Ababa, May 5, 1941) Guyana: East Indian Heritage Day (Annual May 5 celebration of East Indian immigration and heritage) Japan: Children's Day (Kodomo no hi) (Annual celebration for boys: May 5) Korea: Children's Day (Observed annually on May 5 since 1975 to allow parents and children to enjoy a spring day together) Kyrgyzstan: Constitution Day (Commemorates the adoption of the Krygyzstan Constitution: May 5, 1993) Palau: Senior Citizens' Day Thailand: Coronation Day (Commemorates the coronation of His Majesty King Bhumibol Adulyadej May 5, 1950) United States: National Day of Prayer (Observed the first Thursday of May) |
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6FRI |
(Observed the Friday before Mother's Day)
Holocaust Remembrance Day
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7SAT |
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8SUN |
(Observed annually on the birth date of founder Jean Henri Dunant: May 8, 1828)
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(Observed annually the second Sunday in May as per 1914 Congressional Resolution) Europe: Victory in Europe (V-E) Day (Commemorates the of the end of World War II in Europe: May 8, 1945) Missouri: Truman Day (Commemoration of the birthdate of Harry Truman: May 8, 1884) |
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National Biotechnology Week
National Police Week National Salvation Army Week National Tourism Week |
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9MON |
Former Soviet States:
Victory Day
(Commemorates the Soviet Union's victory over NAZI Germany: 05/09/1945) Germany: Flag Day (Observed to commemorate adoption of the national flag: 05/09/1949) Tuvalu: Gospel Day (Observed the second Monday in May) |
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10TUE |
Cameroon:
National Institutions Day
(Commemorates the first meeting of the Cameroon legislative body: 1957) Mexico: Día de las Madres (Mother's Day) (Observed annually on May 10) Micronesia: Constitution Day (Commemorates the ratification of the constitution by four of the Micronesia Trust Territories: 05/10/1979) North Carolina and South Carolina: Confederate Memorial Day (Observed annually on May 10) |
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11WED |
(Observed annually the second Wednesday of May)
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12THU |
Finland:
Snellman's Day
(Commemoration of birth date of J.V. Snellman: 05/12/1806) |
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13FRI |
Macau:
Procession of Our Lady of Fatima
(Commemoration of the Vision of the Virgin Mary in Fatima, Portugal: 05/13/1917) Judaism: Yom HaZikaron Lechalalei Ma'arachot Yisrael (4 Iyar: Day of remembrance for those who died to create the Jewish State of Israel) |
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14SAT |
Liberia:
Unification Day
Malawi: Kamuzu Day (Observed in honor of nation's first president, Dr. Kamuzu Banda) California: Calaveras County Fair & Jumping Frog Jubilee |
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15SUN |
(Annually observed on May 15 per General Assembly proclamation) China: Cheung Chau Bun Festival/Birth of Buddha/Birthday of Tam Kung (Three observances sharing the 8th day of the fourth lunar month) Japan: Festival of Aoi Matsuri (Hollyhock Festival) (Observed in honor of nation's first president, Dr. Kamuzu Banda) Malawi: Kamuzu Day (Observed in honor of nation's first president, Dr. Kamuzu Banda) Mexico, Spain, Peru: San Isidro Day (St. Isidro the Plowman) Paraguay: Independence Day (Commemorates the overthrow of Spanish governor: 05/15/1811) United States: Peace Officers Memorial Day (Observed annually on May 15) California: Calaveras County Fair & Jumping Frog Jubilee |
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16MON |
Cayman Islands: Discovery Day (Commemorates of discovery by Columbus 05/10/1503, celebrated third Monday in May) Ireland: St. Brendan the Navigator's Day California: Calaveras County Fair & Jumping Frog Jubilee |
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17TUE |
(Commemorates the founding of the International Telecommunication Union: 05/17/1865)
Nauru:
Constitution Day
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18WED |
(Observed annually on May 18 since 1977) Haiti: Flag Day (Commemorates adoption of the first Haitian flag: 05/18/1803) Sweden: Saint Eric Day (Feast day of the patron saint of Sweden) Turkmenistan: Revival and Unity Day (Commemorates adoption of the Turkmenistan constitution: 05/18/1992) Uruguay: Battle of Las Piedras (Commemorates the defeat of the Spanish near Montevideo: 05/18/1811) |
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19THU |
Turkey:
Ataturk Memorial, Youth & Sports Day
(Observed in commemoration of the start the War for Turkish Independence: 05/19/1919) Turkmenistan: Holiday of Poetry of Magtymguly (Observed annually on May 19 in honor of Magtymuguly, the national poet of Turkmenistan, whose dates of birth and death are unknown) |
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20FRI |
Cameroon:
Constitution Day
(Commemorates ratification of the Cameroon constitution: 5/20/1972) Cuba: Independence Day (Commemorates the end of U.S. military occupation 5/20/1902) Congo: Party Day. (Commemorates the anniversary of the Mouvement Populaire de la Révolution) |
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21SAT |
National Defense Transportation Day (The third Friday in May )
Chile:
Battle of Iquique/Navy Day
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22SUN |
United States:
National Maritime Day
(Established by Congress in 1933 as an annual May 22 observance) Canada: Immigrants Day (In recognition of the contributions immigrants have made to Canada) Haiti: Sovereignty and Thanksgiving Day Sri Lanka: National Heroes Day (Commemoration of Ceylon changing name to Sri Lanka 05/22/1972) Yemen: Day of National Unity (Commemorates of the unification of North & South Yemen: 5/22/1990) |
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National Safe Boating Week (May 22-28)
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23MON |
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Baha'i Faith: Declaration of Báb (1844 letter of revelation to Baha'u'llah) Jamaica: Labor Day (Actual holiday date 05/23, but celebrated on Monday) Tibet: Saka Dawa Festival: Birth of Buddha (Festival observed on the 15th day of the fourth Tibetan month) |
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24TUE |
Belize:
Commonwealth Day
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25WED |
National Missing Children's Day
(Observed annually on May 25 to remember the abduction of 6-year-old Etan Patz: 05/25/1979) Africa Day (Commemorates the formation of the Organization of African United (1963) & the African Union (2001)) Argentina: National Day/Anniversary of the May Revolution (Commemorates Argentina's break from Spain, and creation of an independent provisional government: 05/25/1810) Jordan: Independence Day (Commemorates independence from Great Brtiain: 05/25/1946) Lebanon: National Liberation Day (Commemorates liberation of South Lebanon following Israel's withdrawl: 05/24/2000) Turkmenistan: Carpet Day |
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26THU |
Georgia:
Independence Day
(Commemorates the revival of the Republic of Georgia: 05/26/1918) Guyana: Independence Day (Commemorates the first day as an indpendent government under a new constitution: 05/26/1966) |
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27FRI |
Judaism:
Lag B'Omer
(18 Iyar: Break in the mourning period for the 24,000 students of second century Rabbi Akiva. Only day in 49-day period when weddings permitted) Nigeria: Children's Day (Annual day off from school: May 27) |
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28SAT |
Armenia:
First Republic Day
(Commemorates Armenia's Victory over Turkey and Proclamation of an Independent Armenian Republic: 05/28/1918) Azerbaijan: Republic Day (Commemorates the formation of the Azerbaijan Democratic Republic: 05/28/1918) Ethiopia: Overthrow of the Derge Regime (Commemorates the overthrow of the Derge military regime by the Peoples' Revolutionary Democratic Front (EPRDF): 05/18/1991) |
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29SUN |
Bahá'í Faith:
Ascension of Baha'u'llah
Comoros: Anniversary of the Death of President Ali Soilih England: Oak Apple/Royal Oak Day (Commemorates the restoration of Charles II: 5/29/1660) Rhode Island: Rhode Island Day (Rhode Island becomes 13th state: 5/29/1790) Wisconsin: Wisconsin Day (Wisconsin becomes 30th state: 5/29/1848) |
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30MON |
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Anguilla:
Anguilla Day
(Commemorates the start of the Anguillian Revolution: 05/30/1967) Croatia: Statehood Day (Commemorates the first session of a free parliament: 05/30/1990) Nicaragua: Mother's Day Spain: Canary Islands Day Trinidad & Tobago: Indian Arrival Day (Commemorates the arrival of indentured labourers from India: 05/30/1845) Virginia: Confederate Memorial Day |
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31TUE |
United Nations:
World No Tobacco Day
Brunei: Anniversary of the Royal Brunei Regiment | |
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This guide last edited 11/09/2004
This guide created 07/05/2004