PHP | jdtounix() Function

PHP jdtounix() Function

Hello dear readers! welcome back to another edition of our tutorial on PHP. In this tutorial guide, we are going to be discussing about PHP jdtounix() Function.

The jdtounix() function returns a Unix timestamp corresponding to the Julian Day given in jday or FALSE if jday is not inside the Unix epoch (Gregorian years between 1970 and 2037). The time returned is localtime.


Following below is the syntax to use this function -

jdtounix ( $jday );

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Parameter Details

Sr.NoParameter & Description


A julian day number between 2440588 and 2465342.

Return Value

This built-in function returns the Unix timestamp for the start of the given Julian Day.


Try out the below example -

   $jd = gregoriantojd(11,3,1990);
   $unix = jdtounix($jd);


When the above code is executed, it will produce the following result -


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Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP jewishtojd() Function.

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