timezone.php

<?php
// Using: php -f timezone.php
$last_date = '';
$time = time();

for ($i=0; $i < $time; $i+=86400) {
	$date = date('O', $i);
	if($date !== $last_date) {
		echo "|\n";
		echo "|-> ".date(DATE_RFC2822, $i)."\n";
	}
	$last_date = date('O', $i);
}
?>