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...

replacement for, the Julian calendar. The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long...

date). The Julian period is a chronological interval of 7980 years; year 1 of the Julian Period was 4713 BC (−4712). The Julian calendar year 2024 is...

very similar predecessor, the Julian calendar), the Islamic calendar, the Solar Hijri calendar and the Hebrew calendar year, week, and weekday – e.g....

The Revised Julian calendar, or less formally the new calendar and also known as the Milanković calendar, is a calendar proposed in 1923 by the Serbian...

The proleptic Julian calendar is produced by extending the Julian calendar backwards to dates preceding AD 8 when the quadrennial leap year stabilized...

Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. Although the term is primarily used for Rome's pre-Julian calendars, it is...

the 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...

length of the year in the Julian calendar that was used in Western societies until the adoption of the Gregorian Calendar, and from which the unit is...

to correct an error in the Julian calendar that was causing erroneous calculation of the date of Easter. The Julian calendar had been based upon a year...

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...

calendar Pax Calendar Pentecontad calendar Pisan calendar Positivist calendar Revised Julian calendar Roman calendar [citation needed] Runic calendar...

Antiquity, the Hellenic calendars inspired the Roman calendar, including the solar Julian calendar introduced in 45 BC. Many modern calendar proposals, including...

Universal Time (UTC). Holocene calendar Calendar reform Common Era Julian day List of calendars Richards, E. G. (2013). "Calendars". In Urban, Sean E.; Seidelmann...

official calendar (although initially, namely between 25 BC and AD 5, it was unsynchronised with the original implementation of the Julian calendar which...

(Julian Calendar), the Armenian calendar was introduced. Year 1 of the Armenian calendar began on 11 July 552 of the Julian calendar. The calendar was...

the preceding Julian calendar) to the date on which the pertinent nation adopted the Gregorian calendar and abandoned the Julian calendar are sometimes...

28. The Gregorian calendar, the world's most widely used civil calendar, makes a further adjustment for the small error in the Julian algorithm. Each leap...

A lunisolar calendar is a calendar in many cultures, incorporating lunar calendars and solar calendars. The date of lunisolar calendars therefore indicates...

whether one follows the Julian Calendar (sometimes referred to as the "Old Calendar") or the Revised Julian Calendar ("New Calendar"). All dates having to...

or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian...

Calendar Man (Julian Gregory Day) is a supervillain appearing in American comic books published by DC Comics, as an enemy of the superhero Batman, belonging...

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

Gregorian calendar was introduced as a refinement of the Julian calendar in 1582, and is today in worldwide use as the "de facto" calendar for secular...

the civil authorities from the Julian to the Gregorian calendar. In religious sources it could be that the Julian calendar was used for a longer period...

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

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 the year...

The Rumi calendar (Ottoman Turkish: رومی تقویم, Rumi takvim, lit. "Roman calendar"), a specific calendar based on the Julian calendar, was officially used...

Egyptian calendar was formerly widespread in Islamic countries, and the Iranian calendar and the 1789 Ottoman calendar (a modified Julian calendar) were...

Other formula-based calendars can have lengths which are further out of step with the solar cycle: for example, the Julian calendar has an average length...