ActionScheduler_TimezoneHelper.php
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<?php
/**
* Class ActionScheduler_TimezoneHelper
*/
abstract class ActionScheduler_TimezoneHelper {
private static $local_timezone = NULL;
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;
}
}