function system_time_zones

system_time_zones($blank = NULL)

Generate an array of time zones and their local time&date.

Parameters

$blank: If evaluates true, prepend an empty time zone option to the array.

File

modules/system/system.module, line 3369

Configuration system that lets administrators modify the workings of the site.

Code

function system_time_zones($blank = NULL) {
  $zonelist = timezone_identifiers_list();
  $zones = $blank ? array('' => t('- None selected -')) : array();
  foreach ($zonelist as $zone) {
    // Because many time zones exist in PHP only for backward compatibility
    // reasons and should not be used, the list is filtered by a regular
    // expression.
    if (preg_match('!^((Africa|America|Antarctica|Arctic|Asia|Atlantic|Australia|Europe|Indian|Pacific)/|UTC$)!', $zone)) {
      $zones[$zone] = t('@zone: @date', array('@zone' => t(str_replace('_', ' ', $zone)), '@date' => format_date(REQUEST_TIME, 'custom', variable_get('date_format_long', 'l, F j, Y - H:i') . ' O', $zone)));
    }
  }
  // Sort the translated time zones alphabetically.
  asort($zones);
  return $zones;
}