section_path: Intercalation/Julian calendar/Revised Julian calendar
section_name: Revised Julian calendar
paragraph_text: Revised Julian calendar
  
  The Revised Julian calendar, proposed in 1923 and used in some Eastern Orthodox Churches, has 218 leap years every 900 years, for the average (mean) year length of 365.242 2222 days, close to the length of the mean tropical year, 365.242 19 days (relative error of 9·10). In the year 2800 CE, the Gregorian and Revised Julian calendars will begin to differ by one calendar day.