<?php
//Settings here

//Mechanisms here

// Testing
$now = new DateTime();
$zero = new DateTime('1442-01-01'); 
$diff = $now->diff($zero);
echo $diff->format('%a days'); // days since day zero
echo "<br/>"; //separator

$year = date("Y") - 579;
$month = date("M") - 6;
$day = date("d") - 12;
// test sample date
echo "Year " . $year . "Month " . $month . "Day " . $day . "<br/>";

?>
Placeholder.