Same name and namespace in other branches

1. 10 core/modules/system/system.module \system_time_zones()
2. 9 core/modules/system/system.module \system_time_zones()
3. 8.9.x core/modules/system/system.module \system_time_zones()

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.

5 calls to system_time_zones()

system_regional_settings in modules/system/system.admin.inc

Form builder; Configure the site regional settings.

system_update_7013 in modules/system/system.install

Convert default time zone offset to default time zone name.

system_user_timezone in modules/system/system.module

Add the time zone field to the user edit and register forms.

user_update_7002 in modules/user/user.install

Convert user time zones from time zone offsets to time zone names.

_install_configure_form in includes/install.core.inc

Form constructor for a site configuration form.

File

modules/system/system.module, line 3417

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;
}

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