The Old New Year, or the Orthodox New Year, is an informal traditional holiday, celebrated as the start of the New Year by the Julian calendar. In the 20th and 21st centuries, the Old New Year falls on January 14 in the Gregorian calendar. The new calendar was based on the same principles as the Julian calendar, but with a few key changes. The most significant change was the introduction of a new rule for leap years. In the Gregorian calendar, a leap year is still added every four years, but years that are divisible by 100 are not leap years unless they are also divisible by 400. Full Moon. 3rd Quarter. Disable moonphases. No holidays are currently shown or available. Holidays are not yet supported for this country. The year 2022 is a common year, with 365 days in total. Calendar type: Julian calendar. Week numbers: ISO 8601 (week starts Monday) - week 1 is the first week with Thursday. 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 scientist Milutin Milanković as a more accurate alternative to both Julian and Gregorian calendars. In 46 BCE Julius Caesar introduced more changes, though the Julian calendar, as it became known, retained January 1 as the year's opening date. With the expansion of the Roman Empire , the use of the Julian calendar also spread. .

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