Date from Julian Day Number Calculator

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Calculates Julian and Gregorian calendars from Julian Day and Modified Julian Day numbers.

Date from Julian Day Number
Date from Julian Day Number
The Julian Day number is the number of days elapsed since noon (12:00) on January 1, 4713 BC
The Modified Julian Day number is the number of days since midnight (00:00) on November 17, 1858 AD (MJD=JD-2400000.5)
The Gregorian calendar is used for dates on and after October 15, 1582 AD.
    Date from Julian Day Number
    [1-5] /5Disp-Num
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    [1]  2022/03/17 15:45   60 years old level or over / An engineer / Useful /
    Purpose of use
    Calculating significant dates of the life of Jesus Christ
    [2]  2021/08/05 18:22   40 years old level / An engineer / A little /
    Purpose of use
    Investigationg EOP files
    [3]  2019/01/30 19:56   40 years old level / An office worker / A public employee / Very /
    Purpose of use
    Checking Julian_Date conversions versus Database conversions
    [4]  2018/08/26 02:22   50 years old level / Self-employed people / Useful /
    Purpose of use
    Verifying my calculations of vernal equinox. (I''m still off by two minutes, apparently.)
    [5]  2013/03/03 10:18   60 years old level or over / Others / A little /
    Purpose of use
    Doing private research to understand the computation of JDN

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