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...

The adoption of the Gregorian Calendar was an event in the early modern history of most cultures and societies, marking a change from their traditional...

The proleptic Gregorian calendar is produced by extending the Gregorian calendar backward to the dates preceding its official introduction in 1582. In...

a more accurate alternative to both Julian and Gregorian calendars. At the time, the Julian calendar was still in use by all of the Eastern Orthodox...

the calendar year from 365.25 days to 365.2425 days and thus corrected the Julian calendar's drift against the solar year: the Gregorian calendar gains...

Julian calendar, it adds a leap day every four years without exception, and begins the year on 11 or 12th of September in the Gregorian calendar (from...

the calendar month from lunation. The Gregorian calendar, introduced in 1582, corrected most of the remaining difference between the Julian calendar and...

countries where the predominant religion is Islam, the civil calendar is the Gregorian calendar, with Syriac month-names used in the Levant and Mesopotamia...

agricultural purposes. More recently, in China and Chinese communities the Gregorian calendar has been adopted and adapted in various ways, and is generally the...

The Arabic names of the months of the Gregorian calendar are usually phonetic Arabic pronunciations of the corresponding month names used in European languages...

before and after a calendar change, respectively. Usually, they refer to the change from the Julian calendar to the Gregorian calendar as enacted in various...

year coincides with the corresponding Gregorian year, so January 1 in the Cotsworth calendar always falls on Gregorian January 1. Twelve months are named...

including the Gregorian calendar introduced in 1582 AD, contains modifications from that of the Julian calendar. In the list below, specific calendars are given...

calendar is a calendar whose dates indicate the season or almost equivalently the apparent position of the Sun relative to the stars. The Gregorian calendar...

Japanese calendar types have included a range of official and unofficial systems. At present, Japan uses the Gregorian calendar together with year designations...

to the Gregorian calendar. The ROC calendar has been in wide use in the ROC since 1912, including in early official documents. The ROC calendar is the...

to 29 days rather than the common 28. The Gregorian calendar, the world's most widely used civil calendar, makes a further adjustment for the small error...

before the next one. For example, it is the year 2024 as per the Gregorian calendar, which numbers its years in the Western Christian era (the Coptic...

calendars today and are used to divide the year. Calendars that developed from the Roman calendar system, such as the internationally used Gregorian calendar...

the Gregorian calendar on 11 September 1875 (1st Thout 1592 AM). This calendar is based on the ancient Egyptian calendar. To avoid the calendar creep...

year. Easter may occur on different dates in the Gregorian Calendar (Western) and the Julian Calendar (Orthodox or Eastern). The accompanying table provides...

In the Gregorian calendar, New Year's Day is the first day of the calendar year, 1 January. Most solar calendars (like the Gregorian and Julian) begin...

list of adoption dates of the Gregorian calendar by country. For explanation, see the article about the Gregorian calendar. Except where stated otherwise...

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...

Indian national calendar, called the Shaka calendar or Śaka calendar, is a solar calendar that is used alongside the Gregorian calendar by The Gazette...

are year notations for the Gregorian calendar (and its predecessor, the Julian calendar), the world's most widely used calendar era. Common Era and Before...

differs 593 years with Gregorian calendar. The Assamese Calendar incorporates the seven-day week as used by many other calendars. সঞ্জীৱ অসম "Dictionary"...

The Soviet calendar was a modified Gregorian calendar that was used in Soviet Russia between 1918 and 1940. Several variations were used during that time...

BCE in the proleptic Gregorian calendar. The Long Count calendar was widely used on monuments. The two most widely used calendars in pre-Columbian Mesoamerica...

The tables below list equivalent dates in the Julian and Gregorian calendars. Years are given in astronomical year numbering. Within these tables, January...