PHP Manual: Set the timezone used by this calendar

Description

Object oriented style

public bool IntlCalendar::setTimeZone ( mixed $timeZone )

Procedural style

bool intlcal_set_time_zone ( IntlCalendar $cal , mixed $timeZone )

Defines a new timezone for this calendar. The time represented by the object is preserved to the detriment of the field values.

Parameters

cal

The IntlCalendar resource.

timeZone

The new timezone to be used by this calendar. It can be specified in the following ways:

NULL, in which case the default timezone will be used, as specified in the ini setting date.timezone or through the function date_default_timezone_set and as returned by date_default_timezone_get.
An IntlTimeZone, which will be used directly.
A DateTimeZone. Its identifier will be extracted and an ICU timezone object will be created; the timezone will be backed by ICUʼs database, not PHPʼs.
A string, which should be a valid ICU timezone identifier. See IntlTimeZone::createTimeZoneIDEnumeration. Raw offsets such as "GMT+08:30" are also accepted.

Return Values

Returns TRUE on success and FALSE on failure.

Examples

Example #1 IntlCalendar::setTimeZone


<?php
ini_set('date.timezone', 'Europe/Lisbon');
ini_set('intl.default_locale', 'es_ES');

$cal = new IntlGregorianCalendar(2013, 5 /* May */, 1, 12, 0, 0);

echo IntlDateFormatter::formatObject($cal, IntlDateFormatter::FULL), "\n";
echo "(instant {$cal->getTime()})\n";

$cal->setTimeZone(IntlTimeZone::getGMT());
echo IntlDateFormatter::formatObject($cal, IntlDateFormatter::FULL), "\n";
echo "(instant {$cal->getTime()})\n";

$cal->setTimeZone('GMT+03:33');
echo IntlDateFormatter::formatObject($cal, IntlDateFormatter::FULL), "\n";
echo "(instant {$cal->getTime()})\n";

The above example will output:

sábado, 1 de junio de 2013 12:00:00 Hora de verano de Europa occidental
(instant 1370084400000)
sábado, 1 de junio de 2013 11:00:00 GMT
(instant 1370084400000)
sábado, 1 de junio de 2013 14:33:00 GMT+03:33
(instant 1370084400000)