DNString2Date:

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   Converts a day number string to a date.
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   Form:
   dateTime = DN2Date( dN, year )
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   ------
   Inputs
   ------
   dn           (1,1)  Day number
   year         (1,1)  Year

   -------
   Outputs
   -------
   dateTime     (1,6)  [year month day hour minute seconds]

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Children:

Common: Time/DN2Date