Fungsi Date timezone_abbreviations_list() PHP

<?php
$tzlist = DateTimeZone::listAbbreviations();
print_r($tzlist["acst"]);
?>
  // Output : Array ( [0] => Array ( [dst] => 1 [offset] => -14400 [timezone_id] => America/Porto_Acre ) [1] => Array ( [dst] => [offset] => 32400 [timezone_id] => Australia/Adelaide ) [2] => Array ( [dst] => [offset] => 34200 [timezone_id] => Australia/Adelaide ) [3] => Array ( [dst] => 1 [offset] => -14400 [timezone_id] => America/Eirunepe ) [4] => Array ( [dst] => 1 [offset] => -14400 [timezone_id] => America/Rio_Branco ) [5] => Array ( [dst] => 1 [offset] => -14400 [timezone_id] => Brazil/Acre ) [6] => Array ( [dst] => [offset] => 32400 [timezone_id] => Australia/Broken_Hill ) [7] => Array ( [dst] => [offset] => 32400 [timezone_id] => Australia/Darwin ) [8] => Array ( [dst] => [offset] => 32400 [timezone_id] => Australia/North ) [9] => Array ( [dst] => [offset] => 32400 [timezone_id] => Australia/South ) [10] => Array ( [dst] => [offset] => 32400 [timezone_id] => Australia/Yancowinna ) [11] => Array ( [dst] => [offset] => 34200 [timezone_id] => Asia/Jayapura ) [12] => Array ( [dst] => [offset] => 34200 [timezone_id] => Australia/Broken_Hill ) [13] => Array ( [dst] => [offset] => 34200 [timezone_id] => Australia/Darwin ) [14] => Array ( [dst] => [offset] => 34200 [timezone_id] => Australia/North ) [15] => Array ( [dst] => [offset] => 34200 [timezone_id] => Australia/South ) [16] => Array ( [dst] => [offset] => 34200 [timezone_id] => Australia/Yancowinna ) )