Helper function to list Timezones

gistfile1.php

function getTimezones()
{
    $zones_array1 = [];
    $timestamp = time();
    $timezones1 = timezone_identifiers_list();
    foreach($timezones1 as $key => $zone)
    {
        date_default_timezone_set($zone);
        $zones_array1[$zone] = 'UTC '. date('P', $timestamp) .' - '. $zone;
    }
    return $zones_array1;
    
  }