It ia an alias of DateTimeZone::__construct()and it creates new DateTimeZone object

<?php
$date = date_create( ‘2007-05-17’);
$timezone = timezone_open ( ‘Australia/Perth’ );
date_timezone_set( $date, $timezone );
$dateTimeZone = date_timezone_get($date);
echo ‘TimeZone is ‘. timezone_name_get($dateTimeZone);
?>

Output

TimeZone is Australia/Perth

It creates new DateTimeZone object

<?php
$date = new DateTime(‘now’, new DateTimeZone(‘Asia/Calcutta’));
$time = $date->format(‘H:i’);
echo $time;
?>

Output

17:53

Its an  alias of DateTimeZone::getTransitions() and  returns all transitions for the timezone

 

Example

<?php
echo “<pre>”;
$tz = new DateTimeZone(“Australia/Perth”);
print_r(timezone_transitions_get($tz));
?>

Output

It will list all transitions of the timezone

It returns all transitions for the timezone

<?php
echo “<pre>”;
$tz = new DateTimeZone(“Europe/London”);
$tzTransitions = $tz ->getTransitions();
print_r(array_slice($tzTransitions, 0, 2));
?>

Output

Array
(
[0] => Array
(
[ts] => -2147483648
[time] => 1901-12-13T20:45:52+0000
[offset] => 3600
[isdst] => 1
[abbr] => BST
)

[1] => Array
(
[ts] => -1691964000
[time] => 1916-05-21T02:00:00+0000
[offset] => 3600
[isdst] => 1
[abbr] => BST
)

)

It returns the version of the timezonedb

<?php
echo timezone_version_get();
?>

Output

0.system

Its an alias of DateTimeZone::getOffset() and returns the timezone offset from GMT

<?php
$dateTime =  date_create(‘2000-01-01’);
$dateTimeZone = timezone_open(‘Australia/Perth’);
print_r( timezone_offset_get($dateTimeZone, $dateTime) );
?>

Output

28800

It returns the timezone offset from GMT

<?php
$dateTimeZone = new DateTimeZone(‘Australia/Perth’);
echo $dateTimeZone->getOffset(new DateTime(“2000-01-01”, new DateTimezone( ‘GMT’ )));
?>

Output

28800

Its an alias of DateTimeZone::getName()and returns the name of the timezone

<?php
$date = date_create(‘2007-05-17’);
$timezone = timezone_open ( ‘Australia/Perth’ );
date_timezone_set( $date, $timezone );
$dateTimeZone = date_timezone_get($date);
echo ‘TimeZone is ‘. timezone_name_get($dateTimeZone);
?>

Output

TimeZone is Australia/Perth

It returns the name of the timezone

<?php
$date = new DateTime(‘2007-05-17’);
$timezone = timezone_open ( ‘Australia/Perth’ );
$date->setTimezone( $timezone );
echo ‘TimeZone is ‘. $timezone->getName();
?>

Output

TimeZone is Australia/Perth