Get timezone offset for a given location

Question

Is it possible in PHP to get the timezone offset for a given location? E.g. when given the location \"Sydney/Australia\" to get the timezone offset as \"+1100\". Bonus would be

Answer 1

Not sure why you need "+1100" (rather than a decimal representation) but you can use this:

$dt = new DateTime(null, new DateTimeZone('Australia/Sydney'));
$offset = $dt->getOffset()/60/60; // 11

$hours = intval($offset);
$minutes = str_pad((string)($offset - $hours) * 60, 2, '0', STR_PAD_RIGHT);
echo $hours.$minutes; // 1100

Replace null with '2010-10-01' and you'll get 1000