GregorianToJD() function in PHP

The GregorianToJD() function converts a Gregorian date to a Julian day count. It returns a Julian day number.

Note − The valid range for the Gregorian calendar is from November 25, 4714 B.C. to at least December 31, 9999 A.D.

Syntax

GregorianToJD(month, date, year)

Parameters

• month − Specifies the month as a number from 1 to 12

• date − Specifies the day as a number from 1 to 31

• year −Specifies the year as a number between -4714 and 9999

Return

The GregorianToJD() function returns a Julian day number.

Example

The following is an example −

<?php
   $jd = gregoriantojd(9,27,2017);
   echo $jd . "<br>";
   echo jdtogregorian($jd);
?>

Output

2458024
9/27/2017