Desktop Organizer (PTBSync)
Atomic clock synchronization, Organizer, Desktop calendar and Trayclock

On this page you can download additional calendars for the program PTBSync.
(All files and information can be consulted without using the PTBSync program)

If you want to use a file, place the corresponding text-file and the corresponding image in the 'holidays' directory on your PC.
[Usually C:\Program Files\PTBSync\Holidays]

Calendars (alphabetical)
Name	Filename	Info	Image (point right and 'save picture as')	necessary Moving Operation(s) info	last modification on
13 Moon calendar	Cal. 13 Moon	First day of each of the thirteen Moons (months) of the 13 Moon calendar. Information about the 13 Moon calendar.	days	none	October 21, 2007
30x11 calendar	Cal. 30x11	First day of each of the twelve months of the 30x11 calendar. Information about the 30x11 calendar on Wikipedia.	days	none	April 5, 2009
53-week calendar	Cal. 53-week.txt	First and last day of the year of the 53-week calendar (used (mainly) in government and business for fiscal years). Information about the 53-week calendar on Wikipedia.	days	N01 N02	May 2, 2007
60-week calendar	Cal. 60-week	First day of each of the twelve months of the 60-week calendar The 60-weeks Calendar divides the year into 12 months each with five 6-day weeks (30 days) and 5/6 extra days. Information about the 60-week calendar.	days	none	April 5, 2009
Annus Novus calendar	Cal. Annus Novus	First day of each of the ten months of the Annus Novus calendar The Annus Novus Calendar divides the year into 10 months alternating between 36 and 37 days in length. Information about the Annus Novus calendar.	days	none	April 5, 2009
Aristean calendar	Cal. Aristean	First day of each of the twelve months of the Aristean calendar. Information on the Aristean calendar. Arestean Holy Days on the Holy Days page.	days	none	April 5, 2009
Armelin's calendar	Cal. Armelin	First day of each of the twelve months of Armelin's calendar. In 1888 French astronomer Gustave Armelin has developed a calendar, which retain the year of twelve months and in which the calendar year of 364 days was divided into 12 months with four equal quarters with 91 days in each one. Information on the Armelin's calendar on Wikipedia.	days	none	December 18, 2011
(old) Armenian calendar	Cal. Armenian Old	First day of each of the thirteen months of the Old Armenian calendar. Information (1) on the Armenian calendar. Information (2) on the Armenian calendar.	days	none	August 5, 2012
Assyrian calendar	Cal. Assyrian	First day of each of the twelve months of the Assyrian calendar Kha B'Nissan, Assyrian calendar New Year on Gregorian April 1.	days	none	April 5, 2009
New Assyrian calendar	Cal. Assyrian (new)	First day of each of the twelve months of the New Assyrian calendar Akitu, New Assyrian calendar New Year on Gregorian March 21 (beginning of spring).	days	none	April 5, 2009
Attic calendar	Cal. Attic	First day of each of the 12/13 months of the Attic (Greek lunar) calendar. Good information is hard to find, so please write me if you have better information.	days	none	July 20, 2014
	Cal. Attic-days	Festive days of the Attic (Greek lunar) calendar. Good information is hard to find, so please write me if you have better information.	days-p	none	May 12,2013
Bahá'í calendar	Cal. Bahai months	First day of each of the nineteen months of the Bahá'í calendar. Bahá'í years start on the March equinox in Teheran (±March 21) and consist of 19 months of 19 days each. Information about the Bahá'í calendar on Wikipedia. Bahá'í Holy Days on the Holy Days page.	days	none	October 22, 2018
Bangla/Bengali calendar	Cal. Bangla-Bangladesh (1987-2018)	First day of each of the twelve months of the Bangla calendar used in Bangladesh (1987-2018). The (Bangla) Bengali calendar is a traditional solar calendar used in Bangladesh and the states of West Bengal, Assam and Tripura in eastern India. The year begins on Pôhela Boishakh, which falls, for Bangladesh, on 14 April. Information about the Bangla/Bengali calendar on Wikipedia.	days	none	August 16, 2021
	Cal. Bangla-Bangladesh (after 2018)	First day of each of the twelve months of the Bangla calendar used in Bangladesh (after 2018). The (Bangla) Bengali calendar is a traditional solar calendar used in Bangladesh and the states of West Bengal, Assam and Tripura in eastern India. The year begins on Pôhela Boishakh, which falls, for Bangladesh, on 14 April. Information about the Bangla/Bengali calendar on Wikipedia.	days	none	August 16, 2021
	Cal. Bangla-India	First day of each of the twelve months of the Bangla calendar used in India. The (Bangla) Bengali calendar is a traditional solar calendar used in Bangladesh and the states of West Bengal, Assam and Tripura in eastern India. The year begins on Pôhela Boishakh, which falls, for India, on 15 April. Information about the Bangla calendar on Wikipedia.	days	none	June 12, 2016
Berber/Amazigh calendar	First day of each of the twelve months of the Berber/Amazigh calendar used by the Berber people of North Africa. The Berber calendar, a legacy of Roman Mauretania, is a surviving form of the ancient Julian Calendar. Information about the Berber calendar on Wikipedia.
	Cal. Berber-Algeria	First day of each of the twelve months of the Berber calendar, month namens: Kabyle (Algeria).	days	none	January 21, 2018
	Cal. Berber-Lybia	First day of each of the twelve months of the Berber calendar, month names: Libyan Arabic.	days	none	January 21, 2018
	Cal. Berber Morocco	First day of each of the twelve months of the Berber calendar, month names: Riffian (north Morocco)/Shilha (south Morocco).	days	none	January 21, 2018
	Cal. Berber-Tunisia	First day of each of the twelve months of the Berber calendar, month names: Berber of Djerba/Tunisian Arabic.	days	none	January 21, 2018
Broadcast calendar	Cal. Broadcast	First day of each of the twelve months of the Broadcast calendar The broadcast calendar is a standardized calendar used primarily for the planning and purchase of radio and television programs and advertising. Information about the Broadcast calendar on Wikipedia.	days	NE7 NEW NEL NMO NSU NLW NWK RMO	February 15, 2008
Celtic Tree calendar	Cal. Celtic Tree	First day of each of the thirteen months of the Celtic Tree calendar The Celts divided the year into thirteen lunar cycles (months or moons). These were linked to specific sacred trees which gave each moon its name. It becomes a a "solar calendar" with "lunar months", thus embodying the balance between God and Goddess. Information about the Celtic Tree calendar.	days	none	April 5, 2009
	Cal. Celtic-days	Festive days of the Celtic Tree calendar	days-p	none	February 18, 2018
Chinese calendar	Cal. Chinese	First day of 10 months of the Chinese calendar. The days in the Chinese calendar are based on the new moon, they can be one day earlier or one day later due to your location on earth.	days	none	August 31, 2014
	Cal. Chinese-days	Festive days of the Chinese calendar. The days in the Chinese calendar are based on the new moon, they can be one day earlier or one day later due to your location on earth.	days-p	none	August 26, 2012
Chinese Agriculture Calendar	Cal. Chinese Agriculture	Festive days of the Chinese Agriculture Calendar. Info on the Chinese Agriculture Calendar on Wikipedia.	days	none	December 16, 2007
Common Era Calendar	Cal. Common Era	First day of each of the twelve months of the Common Era calendar. Info on the Common Era Calendar.	days	none	September 23, 2012
Coptic calendar	Cal. Coptic months	First day of each of the twelve months of the Coptic calendar. The Coptic calendar is one of the four calendars that are automatically calculated in PTBSync.	days	none	September 28, 2014
Cosmic Calendar	Cal. Cosmic	First day of each of the thirteen months of the Cosmic calendar. Info on the Cosmic Calendar.	days	none	September 23, 2012
Decimal calendar	Cal. Decimal	First day of each of the ten months of the Decimal calendar. The Decimal calendar has 10 months of 36/37 days. Information about the Decimal Calendar.	days	none	April 5, 2009
Discordian calendar	see Erisean/Discordian calendar
EASY calendar	Cal. EASY	First day of each of the 13 months of the EASY calendar. The EASY calendar has 13 months of 28 days, all months starting on a Monday, with New Year's day & Leap day as no weekday. Information about the EASY Calendar.	days	none	February 16, 2014
Egyptian-Kemetic calendar	Cal. Egyptian-Kemetic	First day of each of the thirteen months of the Egyptian-Kemetic calendar. Ancient Egyptian calendar with three seasons.	days	none	December 16, 2012
	Cal. Egyptian-Kemetic-days	Festive days of the Egyptian-Kemetic calendar.	days-p	none	December 16, 2012
Erisean/Discordian calendar	Cal. Erisian-Discordian	First day of each of the five seasons of the Erisean/Discordian calendar. The Discordian or Erisian calendar is an alternative calendar used by some adherents of Discordianism. Information on the Erisean/Discordian calendar on Wikipedia. Erisean/Discordian Holy Days on the Holy Days page.	days	none	April 5, 2009
Ethiopian calendar	Cal. Ethiopian months	First day of each of the twelve months of the Ethiopian calendar The same as the coptic calendar but with different names for the months and a different begin year.	days	none	January 24, 2016
Fasli calendar	see Zoroastrian-Fasli calendar
Fixed Week calendar	Cal. Fixed Week	First day of each of the twelve months of the Fixed Week calendar. All months beginning on a Monday and have six-day weeks. Information on the Fixed Week calendar.	days	none	April 5, 2009
French Republican calendar	Cal. French Republican	First day of each of the twelve months of the French Republican calendar. Used in France, and marking the start of the first French Republic on the Autumnal Equinox on Saturday 22nd September 1792. All months beginning on a Primidi and have ten-day weeks. Information on the French Republican calendar.	days	none	January 25, 2015
	Cal. French Republican-days	Festive days of the French Republican calendar.	days-p	none	January 25, 2015
	Cal. French Republican-detailed	All 365/366 days of the French Republican calendar, including festive days. Used in France, and marking the start of the first French Republic on the Autumnal Equinox on Saturday 22nd September 1792. All months beginning on a Primidi and have ten-day weeks. Information on the French Republican calendar.	days	none	January 25, 2015
Gaelic calendar	Cal. Gaelic	First day of each of the twelve Gaelic months. The Gaelic calendar, or alternatively the Irish calendar, is a system of timekeeping developed during Ireland's Gaelic era and is still in popular use in modern Ireland.	days	none	August 31, 2014
Goddess Months	Cal. Goddess Months	First day of each of the thirteen Goddess months.	days	none	April 10, 2011
Gregorian lunar almanac	Cal. Gregorian lunar almanac	First day of each of the 12/13 ecclesiastical new moons of the 19-year moon-cycle (base for the calculation of the Easter-date).	days-y	none	March 31, 2013
Harptos calendar	Cal. Harptos	First day of each of the twelve months of the Harptos calendar and festive days. Calendar used in the Forgotten Realms Dungeons & Dragons campaign setting. Information on the Harptos calendar on Wikipedia.	days	none	April 5, 2009
Hindu calendar	Cal. Hindu	First day of each of the months of the Hindu calendar. Good information is hard to find, so please write me if you have better information.	HinduLunarCalendar	none	October 14, 2012
	Cal. Hindu-days	Festive days of the Hindu calendar. Good information is hard to find, so please write me if you have better information.	HinduLunarCalendar	none	October 14, 2012
Icelandic calendar		Icelandic/Viking/Old Norse calendar in the Icelandic language. See page Other Languages
Illuminati calendar	Cal. Illuminati	First day of each of the five months of the Illuminati calendar. Illuminati chronology (year one AL or 4000 BCE Gregorian) begins with the birth of Hung Mung, the ancient Chaoist (pre-Taoist), Chinese philosopher.	days	none	April 5, 2009
Indian Civil calendar Indian National Calendar	Cal. Indian Civil	First day of each of the twelve months of the Indian Civil calendar (Indian national calendar). The Indian national calendar (sometimes called Saka calendar) is the official civil calendar in use in India. Information on the Indian Civil calendar on Wikipedia.	days	none	July 20, 2014
Indian Lunar calendar	Cal. Indian Lunar	First day of each of the months of the Indian Lunar calendar.	HinduLunarCalendar	none	April 5, 2009
International Perpetual calendar	Cal. Intern. Perpetual	First day of each of the thirteen months of the International Perpetual calendar. The International Perpetual calendar (also known as the International Fixed calendar, the Cotsworth plan, the Eastman plan, the 13 Month calendar or the Equal Month calendar), each month beginning on a Sunday. Information on the International Perpetual calendar.	days	none	April 5, 2009
Invariable Calendar	Cal. Invariable	First day of each of the twelve months of the Invariable Calendar. In April 1900, Professor L. A. Grosclaude of Geneva proposed the Invariable Calendar, New Era Calendar, or Normal Calendar with 12 months and four 91-day quarters of exactly 13 weeks. Information on the Invariable Calendar on Wikipedia.	days	none	December 18, 2011
Iranian calendar Solar Hijri calendar	Cal. Iran months	First day of each of the twelve months of the Iranian calendar (Solar Hijri calendar). The Iranian calendar is one of the four calendars that are automatically calculated in PTBSync.	PersianCalendar	none	April 5, 2009
Islam calendar	Cal. Islam months	First day of each of the twelve months of the Islam calendar. The Islam calendar is one of the four calendars that are automatically calculated in PTBSync. Since the days in the Islam calendar are based on the new moon (moon observation), they can be one day earlier or one day later due to your location on earth. June 30, 2013, fixed the missing 12 days at the end of the Gregorian year (due to the shorter Islam year). Islam Religious Days on the Holy Days page.	days	none	June 30, 2013
ISO-week calendar	Cal. ISO-week	First day of each week of the ISO-week calendar. The ISO week date system is a leap week calendar system that is part of the ISO 8601 date and time standard. The system is used (mainly) in government and business for fiscal years, as well as in timekeeping. Information on the ISO-week calendar on Wikipedia.	days	none	June 21, 2009
Jamahiriya solar calendar	Cal. Jamahiriya solar	First day of each of the twelve months of the Jamahiriya solar calendar.	days	none	April 5, 2009
Javanese calendar (Pranata Mangsa)	Cal. Javanese	First day of each of the twelve months of the Javanese calendar (Pranata Mangsa). The Javanese calendar is a calendar used by the Javanese people. Information on the Javanese calendar (Pranata Mangsa) on Wikipedia.	days	none	April 5, 2009
Jewish calendar	Cal. Jewish months	First day of each of the twelve/thirteen months of the Jewish calendar. The Jewish calendar is one of the four calendars that are automatically calculated in PTBSync. Judaic Religious Days on the Holy Days page.	days	none	May 18, 2024
Juche Calendar	Cal. Juche	The Democratic People's Republic of Korea calendar, DPRK calendar, or Juche calendar, named after the Juche ideology, is the system of year-numbering used in the Democratic People's Republic of Korea. The calendar began to be implemented on 9 September 1997.	days	none	August 26, 2018
Julian calendar	Cal. Julian months	First day of each of the twelve months of the Julian calendar. Valid from March 1, 1800 (NS) to February 28, 2100 (NS).	days	none	February 6, 2014
Kluznickian calendar	Cal. Kluznickian	First day of each of the 13 months of the Kluznickian calendar. The Kluznickian calendar has 13 months of 28 days, all months starting on a Monday, with New Year's day (winter solstice) & Leap day as no weekday. Information about the Kluznickian Calendar.	days	none	February 16, 2014
Kurdish calendar	Cal. Kurdish	First day of each of the twelve months of the Kurdish calendar. The Kurdish calendar used among the Farsi was originally a lunisolar calendar related to the Babylonian calendar but is now a solar calendar related to the Iranian calendar. Information about the Kurdish calendar on Wikipedia.	days	none	October 11, 2009
Macedonian-Syrian solar calendar	Cal. Macedonian-Syrian solar	First day of each of the twelve months of the Macedonian-Syrian solar calendar.	days	none	April 5, 2009
Malayalam calendar	Cal. Malayalam	First day of each of the twelve months of the Malayalam calendar. Malayalam calendar (also known as Malayalam Era or Kollavarsham) is a solar Sidereal calendar used in the state of Kerala in South India. Information on the Malayalam calendar on Wikipedia.	days	none	April 5, 2009
Mangsa Calendar	Cal. Mangsa	First day of each of the twelve months of the Mangsa Calendar. This solar calendar was introduced on June 22, 1855, by Pakubuwono VII (1796-1858), the Susuhunan of Solo in Java. see also the Javanese calendar	days	none	August 26, 2018
Masonic calendars	Cal. Masonic	First day of year in different Masonic calendar (always January 1) with the corresponding Era. Anno Lucius, Anno Ordinis, Anno Mundi, Anno Depositionis, Anno Inventionis, Anno Benefacio, Anno Renascent.	days	none	September 2, 2012
Medieval Calendar - Dismal Days	Cal. Medieval-Dismal	Dismal or Bad Days, also called: evil or unlucky days, Egyptian days or dies Aegyptiaci. The word 'dismal' comes from two Latin words, 'dies mala', which means 'unlucky day'. Information on the Dismal Days (Medieval Calendar).	Attention	none	September 30, 2007
Minguo Calendar	Cal. Minguo	The Republic of China calendar is the method of numbering years currently used in Taiwan by officials. This calendar was introduced on 1 January 1912 by Sun Yat-sen, provisional president of the Republic of China.	days	none	August 26, 2018
Modern calendar	Cal. Modern	First day of each of the ten months of the Modern calendar. The Modern Calendar has nine 40-days months, with 8-day weeks, and a tenth 5/6 days month. Information on the Modern calendar.	days	none	April 5, 2009
Nanakshahi calendar	see Sikh Nanakshahi calendar
New Age calendar	Cal. New Age	First day of each of the twelve months of the New Age calendar. The Foundation New Age Calendar is a solar calendar for which a given day of the year occurs on the same day of the week, month, and month day, every year. Information on the New Age calendar.	days	none	April 5, 2009
New Millennium calendar	Cal. New Millennium	First day of each of the twelve months of the New Millennium calendar. The New Millennium Calendar year has 365 days & 12 months, but each month is of 30 days even (35 in April). All months beginning on a Sunday and have six-day weeks. Information on the New Millennium calendar.	days	none	April 5, 2009
Norwegian Primestaff calendar		ancient Norwegian calendar stick in the Norwegian language. See page Other Languages
Pataphysical calendar	Cal. Pataphysical	First day of each of the thirteen months of the Pataphysical calendar. The Pataphysical calendar is made by Alfred Jarry, writer, inventer of Pataphysics. Information IN FRENCH on the Pataphysical calendar on Wikipedia.	days	none	April 5, 2009
Playing Card calendar	Cal. Playing Card	First day of each of the fifty-two/fifty-three weeks of the Playing Card calendar. Information on the Playing Card calendar.	days	NE1	February 1, 2008
Positivist calendar	Cal. Positivist	First day of each of the thirteen months of the Positivist calendar. The positivist calendar was a lunisolar calendar proposed by Auguste Comte in 1849.	days	none	April 5, 2009
Poundian calendar	Cal. Poundian	First day of each of the twelve months of the Poundian calendar. The Poundian Calendar is based upon the western calendar, but starting at the finish date of the novel Ulysses, by James Joyce, which by sacriligious inference marks the end of Christian era. This date in western calendar was Tuesday 1st November 1921. Esra Pound designed this system and it is now known as the Poundian Calendar. Information on the Poundian calendar.	days	none	April 5, 2009
Pranata Mangsa calendar	see Javanese calendar (Pranata Mangsa)
Primavera calendar	Cal. Primavera	First day of each of the twelve months of the Primavera calendar. Each month has five six-day weeks. Information on the Primavera calendar.	days	none	April 5, 2009
Riparian calendar	Cal. Riparian	First day of each of the thirteen months of the Riparian calendar.	days	none	April 5, 2009
Roman calendar	Cal. Roman-detailed	All days of the Roman calendar (in latin). Including AUC-year (Ab Urbe Condita or Since the Founding of Rome).	days	none	April 5, 2009
Runic Half Months Calendar	Cal. Runic Half Months	First day of each of the half months of the Runic Half Months Calendar.	days	none	October 9, 2011
Saka calendar	see Indian Civil calendar
(Ancient) Salamisian Calendar	Cal. Salamisian (ancient)	First day of each of the twelve months and the five epagomenal days of the (Ancient) Salamisian Calendar. This lunisolar calendar was used in Salamis beginning in the third century	days	none	August 26, 2018
Sexagesimal calendar	Cal. Sexagesimal	First day of each of the six months of the Sexagesimal calendar. Each month has ten six-day weeks. Information on the Sexagesimal calendar.	days	none	April 5, 2009
Shire calendar	Cal. Shire	First day of each of the twelve months of the Shire calendar. The Shire Calendar was a calendar used in J.R.R. Tolkien's fictional Middle-earth by the Hobbits of Shire. Information on the Shire calendar.	days	none	April 5, 2009
Sikh Nanakshahi calendar	Cal. Sikh Nanakshahi	First day of each of the twelve months of the Sikh Nanakshahi calendar. Until the 13th of March, 1998, the Sikhs used a Hindu lunar calendar to determine their feast days. They now use their own Nanakshahi calendar which started on 14 March 1999 Gregorian (1 Chet 531 Nanakshahi) and aligns with the Gregorian calendar. Information on the Sikh Nanakshahi calendar. Sikh Nanakshahi Holy Days on the Holy Days page.	days	none	October 4, 2009
Slavic Pagan Calendar	Cal. Slavic Pagan	First day of each of the twelve months of the Slavic Pagan Calendar.	days	none	April 10, 2011
	Cal. Slavic Pagan-days	Slavic Pagan festive days.	days-p	none	April 10, 2011
Sol calendar	Cal. Sol	First day of each of the thirteen months of the Sol calendar. The 13-month Sol Calendar is a proposal for calendar reform by Jim Eikner of Austin, Texas.	days	none	April 5, 2009
Somali calendar	Cal. Somali	First day of each of the twelve months of the Somali calendar. The Somali solar calendar is known as Amin-tiris or Taqwiim. The Somali calendar (Somali: Soomaali tiro ammin) is based on both the solar and lunar calendric systems, and estimated to date back 2,500 years. The calendar was used by farmers and herders to determine the weather and seasons, it helped them in their needs.	days	none	August 31, 2014
Solar calendar	Cal. Solar	First day of each of the thirteen months of the Solar calendar. The calendar is formed by thirteen months that represent aforesaid the thirteen constellations that during a year the Sun crosses. Information on the Solar calendar.	days	none	January 31, 2006
Soviet Revolutionary calendar	Cal. Soviet revolutionary	First day of each of the twelve months of the Soviet Revolutionary calendar. The Soviet revolutionary calendar was in use in the USSR from Oktober 1, 1929 to December 1, 1931. All months with five-day weeks. Information on the Soviet Revolutionary calendar on Wikipedia.	days	none	April 5, 2009
Tamil Calendar	Cal. Tamil	First day of each of the twelve months of the Tamil calendar. The Tamil calendar is a sidereal Hindu calendar used in Tamil Nadu, India. Information about the Tamil calendar on Wikipedia.	days	none	January 21, 2018
Temple Ankh Ritual Calendar	Cal. Temple Ankh	Worshiping the ancient Egyptian Gods and Goddesses through Rituals, Prayers and Spells dedicated and directed to the Old ones who still hold the power of the universe. Information about the Temple Ankh Ritual Calendar.	days	none	December 14, 2009
Thai solar calendar (Suriyakati)	Cal. Thai solar	First day of each of the twelve months of the Thai solar calendar. The Thai solar calendar, Suriyakati, has been the official and prevalent calendar in Thailand since 1888. Information on the Thai solar calendar on Wikipedia.	days	none	April 5, 2009
Thelemic calendar	Cal. Thelemic	New Year day of the Thelemic calendar. Thelemic Holy Days on the Holy Days page.	days	none	September 25, 2011
Traditional East Asian calendar	Cal. trad. East Asian-East Asia time	First day of each of the twenty-four solar terms of the Traditional East Asian calendar (East Asia time). The traditional East Asian calendars divide a year into 24 solar terms.	days	none	April 10, 2011
	Cal. trad. East Asian-Western time	First day of each of the twenty-four solar terms of the Traditional East Asian calendar (Western time). The traditional East Asian calendars divide a year into 24 solar terms.	days	none	April 10, 2011
Turkmen calendar	Cal. Turkmen	First day of each of the twelve months of the Turkmen calendar. On August 10, 2002, the government of Turkmenistan adopted a law to rename all the months and most of the days of week. The old names were finally restored in July 2008.	days	none	August 31, 2014
Tranquility calendar	Cal. Tranquility	First day of each of the thirteen months of the Tranquility calendar. The Tranquility Calendar is a calendar that has its roots in science. Its center date in history is called Moon Landing Day. Information on the Tranquility calendar.	days	none	September 8, 2013
Vietnamese calendar	Cal. Vietnamese	First day of 10 months of the Vietnamese calendar. Since the days in the Vietnamese calendar are based on the new moon, they can be one day earlier or one day later due to your location on earth.	days	none	August 31, 2014
Worldsday calendar	Cal. Worldsday	First day of each of the twelve months of the Worldsday calendar. The World calendar often called the Worldsday Calendar is a proposed calendar. Information on the Worldsday calendar.	days	none	April 5, 2009
World Season calendar	Cal. World Season	First day of each of the four seasons of the World Season calendar. The World Season Calendar is a proposal for calendar reform by author Isaac Asimov. In this calendar, the year is divided into four seasons of 13 weeks each. Information on the World Season calendar on Wikipedia.	days	none	February 20, 2007
Xhosa calendar	Cal. Xhosa	First day of each of the twelve months of the Xhosa calendar. Traditionally, the year began in June and ended in May, when Canopus, a large star visible in the Southern Hemisphere, signaled the time for harvesting.	days	none	August 31, 2014
YHVH's Solar calendar	Cal. YHVH's Solar	First day of each of the twelve months of the YHVH's Solar calendar. Based on the position of the Sun in a certain constellation & the day represents in number of corelative days that is in this constellation. YHVH Holy Days on the Holy Days page.	days	none	April 5, 2009
Zoroastrian-Fasli calendar	Cal. Zoroastrian-Fasli	First day of each of the twelve months of the Zoroastrian-Fasli calendar. The Zoroastrian calendar is a religious calendar used by members of the Zoroastrian faith, and it is an approximation of the (tropical) solar calendar. Information on the Zoroastrian-Fasli calendar on Wikipedia. Zoroastrian-Fasli Holy Days on the Holy Days page.	days	none	March 2, 2014
Other calendars only New Year Day(s)	Cal. Other Calendars	New Year day(s) of different calendars. African, Armenian, Atomic, Aymara, Babylonian, Byzantine, Cambodian/Khmer, Celtic, Chinese solar, Era of Abraham, Era of the Olympiads, Era of Alexander, Era of Seleucus, Era of Tyre, Era of Spain/Cćsars, Era of Augustus, Holocene Era, Japanese, Jomon Era, Korean Solar & Lunar, Lao, Myanmar, Naga, Neolithic, North Korean, Parsi, Runic, Tibet, Traditional Thai, Vietnamese. Only one or a few lines are interesting for you? You can import one or a few data-lines from a file into the 'organizer', without making the entire file active, by a click with your cursor on that line in the 'special days' window of PTBSync.	days	none	March 21, 2021

Contact

You can contact me in English or Dutch on my e-mail: dewaelheyns(a)Gmail.com with suggestions, remarks, corrections, …