May observances

celebration in the international labour movement on May Day

Pentecost (also called Whit Sunday, Whitsunday or Whitsun) is a Christian holiday that takes place on the 49th day (50th day when inclusive counting is used) after Easter. It commemorates the descent of the Holy Spirit upon the Apostles of Jesus, Mary, and other followers of the Christ, while they were in Jerusalem celebrating the Feast of Weeks, as described in the Acts of the Apostles (Acts 2:1–31). Pentecost marks the "Birthday of the Church".

celebration honoring mothers

commemoration of the triumphal entry of Jesus into Jerusalem

celebration honoring fathers

one of many public observances in honor of children

Christian religious holiday

annual international observance on May 31

public holidays in Russia and ex-USSR

designated date on which celebrations mark the nationhood of a nation

Saturday before Easter Sunday

world day

Catholic feast day, public holiday in some countries

Germanic festival celebrating the start of summer

celebration in honor of peace and unity in Europe (official day in the European Union)

annual international day observed on or around 18 May and coordinated by the International Council of Museums

Vesak (; Sanskrit: '), also known as Buddha Jayanti, Buddha Purnima, Visak Bochea and Buddha Day''', is a holiday traditionally observed by Buddhists in South Asia and Southeast Asia, as well as in Tibet and Mongolia. It is among the most important Buddhist festivals. The festival commemorates the birth, enlightenment (Pali: Nibbāna, Sanskrit: Nirvāṇa), and death (Parinirvāna) of Gautama Buddha in Theravada, Tibetan Buddhism, and Navayana.

day after Easter Sunday

world day

Samhain ( , ; ; ) or '''' () is a Gaelic festival on 1 November marking the end of the harvest season in autumn and beginning of winter or the "darker half" of the year. It is also the Irish and Scottish Gaelic name for November. Celebrations begin on the evening of 31 October, since the Celtic day began and ended at sunset. This is about halfway between the autumnal equinox and winter solstice. It is one of the four Gaelic seasonal festivals along with Imbolc, Bealtaine, and Lughnasa. Historically it originated in Ireland and it was widely observed throughout Ireland, Scotland, and the Isle o

observance to mark the contributions nurses make to society

world day

Chinese festival

holiday celebrating the works of Douglas Adams

type of feast that commemorate the cross used in the crucifixion of Jesus

annual celebration held on May 5

public holiday commemorating the surrender of Nazi Germany (8 May 1945)

event for young people organized by the Catholic Church

federal holiday in the United States of America for honoring and mourning the U.S. military personnel who died while serving in the United States Armed Forces

The International Day of Families provides an opportunity to promote awareness of issues relating to families and to increase knowledge of the social, economic and demographic processes affecting them.

Christian story of Mary visiting Elizabeth

birthday of the Prince Siddhartha Gautama

Beltane ( ) or Bealtaine () is the Gaelic May Day festival, marking the beginning of summer. It is traditionally held on 1 May, or about midway between the spring equinox and summer solstice.

Christian holiday in the Western Church on the Sunday following Pentecost

Roman deity of chastity, fertility, and healing; brought from Magna Græcia during the early/middle Republic; her rites let women use strong wine and do blood-sacrifice (things otherwise forbidden to women); men were barred from her mysteries

world day

public holiday in Norway on May 17: celebration of the Constitution of 1814

1808 rebellion during the Peninsular War

annual celebration of the principles of the International Red Cross and Red Crescent Movement

day celebrated on 17 May

international observance

day before Palm Sunday in the Orthodox Church

public holiday in Japan

annual observance on May 4th to celebrate the Star Wars media franchise

UN world day

Japanese public holidays in May

world day

Palestinian day of commemoration

Hıdırellez or Hıdrellez (; ; ; ) is a folk holiday celebrated as the day on which the prophets Al-Khidr (Hızır) and Elijah (İlyas) met on Earth. Hıdırellez starts on the night of May 5 and ends on May 6 in the Gregorian calendar, and April 23 (St. George's day for the Christians) in the Julian calendar. It is observed in Turkey, Crimea, Gagauzia, Syria, Iraq, the Caucasus, and the Balkans and celebrates the arrival of spring.

annual awareness day to highlight the importance of good menstrual hygiene management

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Radonitsa (Russian: Ра́доница, Belarusian: Ра́даўніца "Day of Rejoicing"), also spelled Radunitsa, Radonica, or Radunica, in the Russian Orthodox Church is a commemoration of the departed observed on the second Tuesday of Pascha (Easter) or, in some places (in south-west Russia), on the second Monday of Pascha. In the Ukrainian tradition it is called Provody (Ukrainian: Прóводи).

Kakava is a celebration event of Romani people in Turkey. Its place of origin is East Thrace in Turkey.

holiday celebrated the day after Pentecost

UN-sanctioned international observance day

The Floralia was a festival of ancient Roman religion in honor of the goddess Flora, held on 27 April during the Republican era, or 28 April in the Julian calendar. The festival included Ludi Florae, the "Games of Flora", which lasted for six days under the empire.

public holiday observed in Galicia, Spain

one of several holidays dedicated to parents

Riḍván (; Bahá'í orthography: Rezván, ) is a twelve-day festival in the Bahá'í Faith commemorating Bahá'u'lláh's declaration that he was a Manifestation of God. In the Bahá'í calendar, it begins at sunset on the 13th of Jalál, which translates to the 20th or 21 April, depending on the date of the March equinox (exactly one month on the Gregorian calendar after the equinox). In 2025, it begins in the evening of 20 April. On the first, ninth and twelfth days of Ridván, work and school should be suspended.

ancient Roman festival