Its an  alias of DateTimeZone::getLocation()and  returns location information for a timezone

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

Output

Array
(
[country_code] => AU
[latitude] => -31.95
[longitude] => 115.85
[comments] => Western Australia – most locations
)

It returns location details of a given timezone

<?php
$timezone_identifiers = timezone_identifiers_list();
for ($i=0; $i < 10; $i++)
echo $timezone_identifiers[$i].”<br />”;

?>
s

Output

Array
(
[country_code] => AU
[latitude] => -31.95
[longitude] => 115.85
[comments] => Western Australia – most locations
)

Its an alias of DateTimeZone::listIdentifiers()and   returns numerically index array with all timezone identifiers

<?php
$timezone_identifiers = timezone_identifiers_list();
for ($i=0; $i < 10; $i++)
echo $timezone_identifiers[$i].”<br />”;

?>
s

Output

Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
Africa/Bamako
Africa/Bangui
Africa/Banjul
Africa/Bissau
Africa/Blantyre

It  returns numerically index array with all timezone identifiers

<?php
$timezone_identifiers = DateTimeZone::listIdentifiers();
for ($i=0; $i < 10; $i++)
echo $timezone_identifiers[$i].”<br />”;

?>

Output

Africa/Abidjan
Africa/Accra
Africa/Addis_Ababa
Africa/Algiers
Africa/Asmara
Africa/Bamako
Africa/Bangui
Africa/Banjul
Africa/Bissau
Africa/Blantyre

Its an alias of DateTimeZone::listAbbreviations()and returns associative array containing dst, offset and the timezone name

<?php
echo “<pre>”;
$timezone = timezone_abbreviations_list();
print_r($timezone[‘admt’]);
?>

Output

Array
(
[0] => Array
(
[dst] =>
[offset] => 9320
[timezone_id] => Africa/Addis_Ababa
)

[1] => Array
(
[dst] =>
[offset] => 9320
[timezone_id] => Africa/Asmara
)

[2] => Array
(
[dst] =>
[offset] => 9320
[timezone_id] => Africa/Asmera
)

)

It returns associative array containing dst, offset and the timezone name

<?php
echo “<pre>”;
$ta = DateTimeZone::listAbbreviations();
print_r($ta[“burt”]);
?>

Output

Array
(
[0] => Array
(
[dst] =>
[offset] => 23400
[timezone_id] => Asia/Kolkata
)

[1] => Array
(
[dst] =>
[offset] => 23400
[timezone_id] => Asia/Calcutta
)

[2] => Array
(
[dst] =>
[offset] => 23400
[timezone_id] => Asia/Dacca
)

[3] => Array
(
[dst] =>
[offset] => 23400
[timezone_id] => Asia/Dhaka
)

[4] => Array
(
[dst] =>
[offset] => 23400
[timezone_id] => Asia/Rangoon
)

)

Its an alias of DateTime::setTimezone()and  sets the time zone for the DateTime object

<?php
$date = date_create(‘2000-01-01’, timezone_open(‘Asia/Calcutta’));
echo date_format($date, ‘Y-m-d H:i:sP’) . “<br />”;
date_timezone_set($date, timezone_open(‘Australia/Perth’));
echo date_format($date, ‘Y-m-d H:i:sP’) ;
?>

Output

2000-01-01 00:00:00+05:30
2000-01-01 02:30:00+08:00

It sets the time zone for the DateTime object

<?php
$date1 = new DateTime(‘2000-01-01’, new DateTimeZone(‘Asia/Calcutta’));
echo $date1->format(‘Y-m-d H:i:sP’) . “<br />”;
$date1->setTimezone(new DateTimeZone(‘Australia/Perth’));
echo $date1->format(‘Y-m-d H:i:sP’) ;
?>

Output

2000-01-01 00:00:00+05:30
2000-01-01 02:30:00+08:00

Its an alias of DateTime::getTimezone()and  returns time zone relative to given DateTime

<?php
$date1 = date_create(null, timezone_open(‘Asia/Calcutta’));
$timezone = date_timezone_get($date1);
echo timezone_name_get($timezone);
?>

Output

Asia/Calcutta

It return time zone relative to given DateTime

<?php
$date1 = new DateTime(null, new DateTimeZone(‘Asia/Calcutta’));
$timezone = $date1->getTimezone();
echo $timezone->getName();
?>

Output

Asia/Calcutta