public static function get_local_timezone($reset = FALSE)
{
if ($reset) {
self::$local_timezone = NULL;
}
if (!isset(self::$local_timezone)) {
$tzstring = get_option('timezone_string');
if (empty($tzstring)) {
$gmt_offset = get_option('gmt_offset');
if ($gmt_offset == 0) {
$tzstring = 'UTC';
} else {
$gmt_offset *= HOUR_IN_SECONDS;
$tzstring = timezone_name_from_abbr('', $gmt_offset);
if (false === $tzstring) {
$is_dst = date('I');
foreach (timezone_abbreviations_list() as $abbr) {
foreach ($abbr as $city) {
if ($city['dst'] == $is_dst && $city['offset'] == $gmt_offset) {
$tzstring = $city['timezone_id'];
break 2;
}
}
}
}
if (false === $tzstring) {
$tzstring = 'UTC';
}
}
}
self::$local_timezone = new DateTimeZone($tzstring);
}
return self::$local_timezone;
}
