8 calls to system_time_zones() in Zircon Profile 8

Date::buildOptionsForm in core/modules/views/src/Plugin/views/field/Date.php

Default options form that provides the label widget that all fields should have.

DateTimeFormatterBase::settingsForm in core/modules/datetime/src/Plugin/Field/FieldFormatter/DateTimeFormatterBase.php

Returns a form to configure settings for the formatter.

RegionalForm::buildForm in core/modules/system/src/Form/RegionalForm.php

Form constructor.

SiteConfigureForm::buildForm in core/lib/Drupal/Core/Installer/Form/SiteConfigureForm.php

Form constructor.

system_user_timezone in core/modules/system/system.module

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

TimestampFormatter::settingsForm in core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/TimestampFormatter.php

Returns a form to configure settings for the formatter.

User::getAllowedTimezones in core/modules/user/src/Entity/User.php

Defines allowed timezones for the field's AllowedValues constraint.

UserUpdate7002::__construct in core/modules/user/src/Plugin/migrate/process/d6/UserUpdate7002.php

Constructs a Drupal\Component\Plugin\PluginBase object.