Overview
KB
Technical FAQ
PHP Manual
CSS2 Manual
HTML Manual
JS Guide
JS Reference
PhpDock Manual
Nu-Coder Manual
PhpExpress Manual
PHP Joomla
Development
Learn PHP
 
<IntlCalendar::setMinimalDaysInFirstWeekIntlCalendar::setSkippedWallTimeOption>
^IntlCalendarLast updated: Mon, 26 Oct 2026

IntlCalendar::setRepeatedWallTimeOption

(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)

IntlCalendar::setRepeatedWallTimeOption — Set behavior for handling repeating wall times at negative timezone offset transitions

Description

Object-oriented style

public function IntlCalendar::setRepeatedWallTimeOption(int $option): true

Procedural style

function intlcal_set_repeated_wall_time_option(IntlCalendar $calendar, int $option): true

Sets the current strategy for dealing with wall times that are repeated whenever the clock is set back during dailight saving time end transitions. The default value is IntlCalendar::WALLTIME_LAST (take the post-DST instant). The other possible value is IntlCalendar::WALLTIME_FIRST (take the instant that occurs during DST).

This function requires ICU 4.9 or later.

Parameters

calendar

An IntlCalendar instance.

option

One of the constants IntlCalendar::WALLTIME_FIRST or IntlCalendar::WALLTIME_LAST.

Return Values

Always returns true.

Changelog

Version Description
8.2.0 The return type is true now; previously, it was bool.

Examples

See the example on IntlCalendar::getRepeatedWallTimeOption().

See Also


<IntlCalendar::setMinimalDaysInFirstWeekIntlCalendar::setSkippedWallTimeOption>
^IntlCalendarLast updated: Mon, 26 Oct 2026