- timezone_name_from_abbr: documentation ( source)
<?php
$d = new \DateTime('8.11.2016 10:00:00',new \DateTimeZone('UTC'));
$d->setTimezone(new \DateTimeZone('Australia/Melbourne'));
echo $d->format("d.m.Y H:i");
echo timezone_name_from_abbr("", 10*3600, 0) . "\n";