DateTime::setTimezone

date_timezone_set

(PHP 5 >= 5.2.0)

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

Opis

Styl obiektowy

public DateTime DateTime::setTimezone ( DateTimeZone $timezone )

Styl proceduralny

DateTime date_timezone_set ( DateTime $object , DateTimeZone $timezone )

Parametry

object: Tylko styl proceduralny: Obiekt DateTime zwracany przez date_create(). Funkcja modyfikuje ten obiekt.
timezone: A DateTimeZone object representing the desired time zone.

Zwracane wartości

Zwraca zmodyfikowany obiekt DateTime lub FALSE w przypadku niepowodzenia.

Rejestr zmian

Wersja	Opis
5.3.0	Zmieniono zwracaną wartość w przypadku powodzenia z `NULL` na DateTime.

Przykłady

Przykład #1 DateTime::setTimeZone() example

Styl obiektowy


<?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";
?>

Styl proceduralny


<?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";
?>

Powyższe przykłady wyświetlą:

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

Zobacz też:

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