Chronos, Kairos and Aion are the three deities of time, events and epic destinies. Here is the multi-religious and multicultural calendar!

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holiday ephemeris calendar

The schedule in brief from D-2 to D+5

  • April 29, 2025: Golden Week
  • May 1, 2025, : Bona Dea
  • May 1, 2025, : Fukuno Yotaka
  • May 1, 2025: Lei Day
  • May 3, 2025, : Hakata Dontaku
  • May 5, 2025: Tango no Sekku
  • May 5, 2025, : Tōxcatl

The complete interactive calendar

Holidays of the month

  • May 1, 2025 (3 events)

    May 1, 2025

    On this day, the Romans celebrated Bona Dea. She was a goddess in ancient Roman religion. She was associated with the chastity and fertility of Roman women, healing and protection of the state and people of Rome. Its rites allowed women to use strong wine and blood sacrifice, things otherwise forbidden to them by Roman tradition. #mythology #myth #legend #calendar #romeantique #rome #bonadea #1May #3December

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    May 1, 2025

    Today, the Japanese of Nanto celebrate Fukuno Yotaka. This more than 350-year-old festival is known for its paper lamp works lit in the evening. #mythology #myth #legend #calendar #1May #FukunoYotaka #japan

    May 1, 2025

    Today, Hawaiians celebrate Lei Day. Much more than May Day, this day is an opportunity to honor the culture of the island's natives since 1927. #mythology #myth #legend #calendar #May 1st #LeiDay #Hawai

  • May 3, 2025 (1 event)

    May 3, 2025

    Today, the Japanese begin the Hakata Dontaku festival in Fukuoka. This festival has two main parts which are the parade and the shows. Locals walk the streets in various costumes, and they play some instruments, and others clap with rice spoons. #mythology #myth #legend #calendar #3May #Japan #hakatadontaku

  • May 5, 2025 (2 events)

    May 5, 2025

    Today, the Japanese celebrate Tango no Sekku, one of the festivals traditionally held by the Gosekku imperial court. This feast fell on the fifth day of the fifth month, before being postponed on the Gregorian calendar. It marks the beginning of summer and the rainy season. #mythology #myth #legend #calendar #5May #japan #tangonosekku


    May 5, 2025

    On this day, the Aztecs celebrated Tōxcatl in Tenochtitlán. It featured ceremonies, dances, and rituals honoring Tezcatlipoca, the conflicting god. The festival culminated in the sacrifice of a chosen young man who personified divinity, symbolizing fertility and renewal. #mythology #myth #legend #calendar #2June #Tōxcatl #Tezcatlipoca #Aztec

  • May 7, 2025 (1 event)

    May 7, 2025

    Today, the Aymaras are in the spotlight. Peruvian people from the Lake Titicaca area, they dominated the region until the Inca Empire and then the Spanish colonization. This day is an occasion for songs, dances, traditional meals and traditional arts. #mythology #myth #legend #calendar #7May #Aymara #Aimara #Peru

  • May 9, 2025 (1 event)

    May 9, 2025

    On this day, the Romans celebrated Lemuria. They paid homage to the dead and exorcised malevolent ghosts from their homes. The rites took place during the night, around midnight. #mythology #myth #legend #calendar #May 9 #May 11 #May 13 #rome #lemuria

  • May 14, 2025 (1 event)

    May 14, 2025

    Today, the Japanese of Izuma celebrate Reisai in one of the oldest Shinto temples in Japan, Izumo-taisha. It is dedicated to the god Ōkuninushi, famous as a Shinto divinity of marriage, and to Kotoamatsukami, distinguishing the celestial kami. #mythology #myth #legend #calendar #May 14 #Japan #IzumoTaisha #Reisai

  • May 15, 2025 (3 events)

    May 15, 2025

    Today, the Japanese celebrate Aoi Matsuri in Kyoto. The origin of the festival dates back to the period of Emperor Kimmei (5th century CE). The harvests were not satisfactory, and this was experienced as a curse from the Kamo spirit. A horse was equipped to run with bells and the harvests were plentiful. #mythology #myth #legend #calendar #May 15 #AoiMatsuri #kyoto

    May 15, 2025

    The weekend closest to May 15 takes place Kanda Matsuri in Japan, in Tokyo. The festival began in the early 17th century to celebrate Tokugawa Ieyasu's decisive victory at the Battle of Sekigahara and continued as a demonstration of the prosperity of the Tokugawa shogunate during the Edo period. Additionally, the current form of the festival is also held in honor of Kanda Myōjin's kami. #mythology #myth #legend #calendar #May 15 #KandaMatsuri #Japan #Tokyo

    May 15, 2025

    On this day, the Romans celebrated the Mercuralia. Mercury is the god of merchants and commerce. Merchants sprinkled their heads, their ships, their goods and their businesses with water taken from the well of Porta Capena. #mythology #myth #legend #calendar #rome #May 15 #mercuralia

  • May 21, 2025 (2 events)

    May 21, 2025

    On this day, the Romans celebrate an Agonium. Rites of early Rome, there are few sources describing the customs. Four Agonalia take place during a year. #mythology #myth #legend #calendar #9January #21May #17March #11December #agonalia #rome

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    May 21, 2025

    On this day, the Romans celebrated Vejovis, a god of Etruscan origin. A goat was sacrificed in his Capitol temple to prevent epidemics. There are few sources of early Roman ritual. #mythology #myth #legend #calendar #May 21 #Rome #Vejovis #Capitole

  • May 23, 2025 (2 events)


    May 23, 2025

    On this day, the Aztecs began the month of Etzalcualiztli, in honor of Tlaloc and Chalchihuitlicue. Gods of water in all its states and its forms of violence (storms) and fertility, they were of crucial importance for the Aztec empire, their way of life, their food and everything that touches Lake Texcoco and its sacred hills. Satisfying these two gods was the duty of all citizens. #mythology #myth #legend #calendar #texcoco #Aztec #Tlaloc #23May

    May 23, 2025

    On this day, the Romans celebrate the Tubilustium. The month of March marked the beginning of the war season. The lustration ceremony accompanied by the sacred trumpets and the Saliens prepared the men and the city for future military campaigns. #mythology #myth #legend #calendar #March 23 #May 23 #rome #tubilustrium

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  • May 27, 2025 (1 event)

    May 27, 2025

    Today, Peruvians celebrate their mother tongue. Before the conquest of America in the territory of Tahuantinsuyo the official language was Quechua; but there were also local languages like Aymara in the south of the country, Uro around Lake Titicaca, Culle and Muchick in the northern region of Peru. #mythology #myth #legend #calendar #May 27 #Peru #Quechua #Aymara #Uro #Culle #Muchick

  • May 30, 2025 (1 event)

    May 30, 2025

    Today the Kadazan-Dusuns of Malaysia celebrate Kaamatan. The Harvest Festival falls under what is known as Momolianism. There is a dance show called Sumazau, a singing contest called Sugandoi, a bodybuilding contest, and other arts and crafts shows. #mythology #myth #legend #calendar #May 30 #Kaamatan #Maya

Multicultural and multi-religious almanac

An almanac is a calendar showing the main dates of the calendar, the religious holidays, bearing ephemerides such as the phases of the moon or the duration of the days (lunar and solar calendars).

A calendar is a system for marking dates according to time. Such a system was invented by men to divide and organize time over long periods. The observation of the periodic phenomena of the environment in which they lived — such as the daily movement of the shadow, the return of the seasons or the lunar cycle — served as the first references for organizing the agricultural, social and religious life of societies.

The calendar used today in most of the world is the Gregorian calendar. In everyday language, an ephemeris designates what happens daily; the ephemeris of the day is the list of the significant events of this day.