The World Calendar is a proposed reform of the Gregorian calendar created by Elisabeth Achelis of Brooklyn, New York in 1930. The World Calendar is a 12-month...

calendar, such as the World Calendar, the International Fixed Calendar, the Holocene calendar, and the Hanke–Henry Permanent Calendar. Such ideas are mooted...

The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull Inter gravissimas...

Gregorian calendar, widely accepted as a standard in the world, is an example of a solar calendar. The main other types of calendar are lunar calendar and lunisolar...

Calendar reform or calendrical reform is any significant revision of a calendar system. The term sometimes is used instead for a proposal to switch to...

Calendar (also known as the Cotsworth plan, the Cotsworth calendar, the Eastman plan or the Yearal) was a proposed reform of the Gregorian calendar designed...

calendar Liturgical year Calendar of saints Advent calendar Wall calendar Geologic Calendar Cosmic Calendar Lunar calendar World calendar List of adoption dates...

listing of events and dates for the 2009 calendar". Uci.ch. Retrieved 2012-07-16. ProTour is dead, long live the World Tour Cyclingweekly. Accessed 14-01-11...

The French Republican calendar (French: calendrier républicain français), also commonly called the French Revolutionary calendar (calendrier révolutionnaire...

Julian calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still...

Hijri calendar (Arabic: ٱلتَّقْوِيم ٱلْهِجْرِيّ, romanized: al-taqwīm al-hijrī), or Arabic calendar also known in English as the Muslim calendar and Islamic...

called the Common Era, which number the years of the commonly accepted world calendar. These issues include: The Anno Domini era is based on the erroneous...

This national electoral calendar for 2024 lists the national/federal elections held, and scheduled to be held, in 2024 in all sovereign states and their...

A perennial calendar is a calendar that applies to any year, keeping the same dates, weekdays and other features. Perennial calendar systems differ from...

The Hebrew calendar (Hebrew: הַלּוּחַ הָעִבְרִי, romanized: halLūaḥ hāʿĪḇrī), also called the Jewish calendar, is a lunisolar calendar used today for...

In Thailand, two main calendar systems are used alongside each other: the Thai solar calendar, based on the Gregorian calendar and used for official and...

A calendar year begins on the New Year's Day of the given calendar system and ends on the day before the following New Year's Day, and thus consists of...

The Hindu calendar, also called Panchanga (Sanskrit: पञ्चाङ्ग), is one of various lunisolar calendars that are traditionally used in the Indian subcontinent...

The traditional Chinese calendar (traditional Chinese: 農曆; simplified Chinese: 农历; lit. 'agricultural calendar'; traditional Chinese: 陰曆; simplified Chinese:...

The positivist calendar was a calendar reform proposal by Auguste Comte (1798–1857) in 1849. Revising the earlier work of Marco Mastrofini, or an even...

calendar appear in the Hebrew calendar, Assyrian calendar, Syriac calendar, Old Persian calendar, and Turkish calendar. The Babylonian civil calendar...

The Tamil calendar (தமிழ் நாட்காட்டி) is a sidereal solar calendar used by the Tamil people of the Indian subcontinent. It is also used in Puducherry,...

November and December upon the adoption of the Julian calendar in 44 BC, including the World Calendar Association and Isaac Asimov. This claim has no contemporary...

The Assamese Calendar (Assamese: ভাস্কৰাব্দ, lit. 'Bhāskarābda') is a Lunisolar calendar, followed in the Indian state of Assam. The New Year in the Assamese...

although some countries use other calendars. 168 of the world's countries use the Gregorian calendar as their sole civil calendar as of 2021. Most non-Christian...

A perpetual calendar is a calendar valid for many years, usually designed to look up the day of the week for a given date in the past or future. For the...

The Maya calendar is a system of calendars used in pre-Columbian Mesoamerica and in many modern communities in the Guatemalan highlands, Veracruz, Oaxaca...

The Punjabi calendar (Punjabi: ਪੰਜਾਬੀ ਜੰਤਰੀ, پنجابی جنتری) is a luni-solar calendar used by the Punjabi people in Punjab and around the world, but varies...

day, week, or month into some calendar years to make the calendar follow the seasons or moon phases. Lunisolar calendars may require intercalations of...

Igbo calendar (Igbo: Ọ̀gụ́àfọ̀ Ị̀gbò[citation needed]) is the traditional calendar system of the Igbo people from present-day Nigeria. The calendar has...