DateTime::setTimezone

date_timezone_set

(PHP 5 >= 5.2.0)

DateTime::setTimezone -- date_timezone_set — Sets the time zone for the DateTime object

설명

객체 기반 형식

public DateTime DateTime::setTimezone ( DateTimeZone $timezone )

절차식 형식

DateTime date_timezone_set ( DateTime $object , DateTimeZone $timezone )

인수

object: Procedural style only: A DateTime object returned by date_create(). The function modifies this object.
timezone: A DateTimeZone object representing the desired time zone.

반환값

Returns the DateTime object for method chaining or FALSE on failure.

변경점

버전	설명
5.3.0	반환값을 `NULL`에서 DateTime으로 변경.

예제

Example #1 DateTime::setTimeZone() example

객체 기반 형식


<?php
$date = new DateTime('2000-01-01', new DateTimeZone('Pacific/Nauru'));
echo $date->format('Y-m-d H:i:sP') . "\n";

$date->setTimezone(new DateTimeZone('Pacific/Chatham'));
echo $date->format('Y-m-d H:i:sP') . "\n";
?>

절차식 형식


<?php
$date = date_create('2000-01-01', timezone_open('Pacific/Nauru'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";

date_timezone_set($date, timezone_open('Pacific/Chatham'));
echo date_format($date, 'Y-m-d H:i:sP') . "\n";
?>

위 예제들의 출력:

2000-01-01 00:00:00+12:00
2000-01-01 01:45:00+13:45

참고

DateTime::getTimezone() - Return time zone relative to given DateTime
DateTimeZone::__construct() - Creates new DateTimeZone object

add a note User Contributed Notes DateTime::setTimezone

salladin 08-May-2012 01:59


I found unexpected behaviour when passing a timestamp.

timezone seems to always be GMT+0000 unless setTimezone() is set.



<?php



$MNTTZ = new DateTimeZone('America/Denver');

$ts = 1336476757;



$dt = new DateTime("@$ts", $MNTTZ);

var_dump($dt->format('T'), $dt->format('U'));



$dt->setTimezone($MNTTZ);

var_dump($dt->format('T'), $dt->format('U'));



/** Output:

string(8) "GMT+0000"

string(10) "1336476757"

string(3) "MDT"

string(10) "1336476757"

**/



?>

keithm at aoeex dot com 24-Nov-2009 03:13


The timestamp value represented by the DateTime object is not modified when you set the timezone using this method.  Only the timezone, and thus the resulting display formatting, is affected.



This can be seen using the following test code:

<?php

$MNTTZ = new DateTimeZone('America/Denver');

$ESTTZ = new DateTimeZone('America/New_York');



$dt = new DateTime('11/24/2009 2:00 pm', $MNTTZ);

var_dump($dt->format(DATE_RFC822), $dt->format('U'));

$dt->setTimezone($ESTTZ);

var_dump($dt->format(DATE_RFC822), $dt->format('U'));



/** Output:

string(29) "Tue, 24 Nov 09 14:00:00 -0700"

string(10) "1259096400"

string(29) "Tue, 24 Nov 09 16:00:00 -0500"

string(10) "1259096400"

**/

?>



As such, you can use this to easily convert between timezones for display purposes.

add a note