The date january 1 , 2001 a . d . in the gregorian calendar is equivalent to the 19th day of december in the year 2000 a . d . in the julian calendar 公历中日期公元2001年1月1日相当于儒略历公元2000年12月19日。
But tampering still continued until julius caesar , in 46 b . c , established what has come to be known as the julian calendar 不过擅自更改还在继续着，直到朱利斯?凯撒于公元前46年制定了为人所知的罗马儒略历为止。
According to folklore expert bengt af klintberg , its date is a vestige of the discarded julian calendar , which set the winter solstice on december 13 民俗专家bengt af klintberg说， 12月13日是废弃的儒略历中的冬至。
Dates on or after 15th october 1582 are considered to be in the gregorian calendar . dates before this are considered to be in the julian calendar 1582年10月15日及之后的日期将视作格里历日期，之前日期将视作儒略历日期。
Unlike the gregorian calendar , the julian calendar defines a leap year as a year that is evenly divisible by four with no exceptions ; therefore , the calendar is inaccurate by one day every 128 years 与公历不同，儒略历将闰年定义为可被4整除的年份（没有例外） ；因此，此日历每128年就有一天的误差。平年有365天，闰年有366天。
