convert unix time to Gregorian

hi!
I am try to change unix time to Gregorian.

I successfully convert unix time to Gregorian.
But Gregorian time is now showing hour and second and more detail time.

<?php
$unix_timestamp="1208764059";
echo "$unix_timestamp"."\tUnix Time Stamp"."<br />";
$julius=unixtojd($unix_timestamp);
$Gregorian=jdtogregorian("$julius");
echo "$Gregorian";
?>

Above code showing the result only date and year.

ie
1208764059 Unix Time Stamp
2454578 //julius
4/21/2008 //Gregorian <-----


I need to see hour and time or more detail time.

If some knows convert Unix time stamp to Gregorian with hour and second,
please teach me how!