Common problem with JD Converter

Before sending me e-mail reporting problems with my Julian Date Converter (I thank you very much for using it and finding time to report bugs), first read my answer to a very common problem people are reporting, due to the input date format.
    -> I gave the date 8-29-1999
    -> and got 2452040.
    -> Converted back I got may 10, 2001!
    -> Thought you'd like to know.

    Common error. If you read CAREFULLY the instructions you will
    see that the input format is DD-MM-YYYY, which means FIRST day
    and THEN MONTH (Americans are the only people in the world to
    use this notation, all other people use dd/mm/yyyy... 8-) ).
    Therefore if you want to input August 29, 1999 the input date
    is 29-8-1999!
      The date you input is day 8 of month 29 of 1999. Month 29 is
    2 years and five months after 1/1/1999, that is may 2001.
    The answer the program gave you is therefore correct.

You can find the definition of the Julian date at or

This file was last modified on Monday, 11-Jun-2001 15:26:01 CEST by Mauro Orlandini

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